Is OS X Mavericks v10.9.5 Update fixed?

Has the OS X Mavericks v10.9.5 Update been fixed yet or should I continue to wait for upgrade? Where will Apple announce when the upgrade is fixed and ready to install without all the problems I am hearing about?

There is nothing new for 10.9.5. It did not require fixing. With Yosemite only weeks away from release there will likely be no more updates for Mavericks.
If you have some sort of problem, then if you tell us what it is perhaps it can be fixed. You do not want to update your system unless it is pristine and free from any issues. But if you don't wish to update to 10.9.5, then you can wait to upgrade to Yosemite. It won't fix any problems that you think you now have.

Similar Messages

About the OS X Mavericks v10.9.5 Update i am trying to update this since yesterday but its saying there is an error in server "Can't connect to the Apple Software Update server.(-1003)" please help

About the OS X Mavericks v10.9.5 Update i am trying to update this since yesterday but its saying there is an error in server "Can't connect to the Apple Software Update server.(-1003)" please advise with instructions how to update it...
why i am not allowed

Try running the combo update.
10.9.5 Combo Update

OS X Mavericks v10.9.4 Update still does not fix the wifi shut off in sleep mode problem

OS X Mavericks v10.9.4 Update was supposed to fix the wifi connectivity problem with my iMac. Wifi disconnects in sleep mode and does not connect when awakened. Must reconnect manually every time. PITA.

Your observation is correct about wifi disconnection in sleep mode. That is normal, you may want to check to see if your Mac supports Power Nap/is enabled- OS X: About Power Nap
The reconnect should be automatic within a few seconds.
Does it happen with multiple wifi networks or just one?
Have you tried deleting and re-adding the wifi network?

Did OS X Mavericks v10.9.4 update break bluetooth audio for anyone else?

Did OS X Mavericks v10.9.4 update break bluetooth audio for anyone else?
I have a 2.4GHz Intel Core 2 duo MacMini from 2010, and I just updated to the latest OSX (10.9.4 (13E28)) and now bluetooth audio is broken.
I can pair my device (LG Tone+) to the mac, but no audio will play though it. I've rebooted the machine, reconnected the device after the update, restarted the browser, all with no results.
Typically, when I connect to the system I will get audio acknowledgements through the headset, "Power On" "Battery High" "Connected"
I still get those audio queues through the device. However when I open up a video on YouTube, or attempt to stream music on Spotify...nothing happens.
I've plugged wired headphones into the system and that works just fine. When I connect my Bluetooth headset, the audio to the wired headphones disconnects, so it seems like everything is behaving normally, except that no audio plays through the bluetooth headset.
Any ideas on where to go from here would be greatly appreciated. So, what do we think?

Try resetting the SMC.
Barry

HT6114 After OS X Mavericks v10.9.2 Update I cannot use my Apple TV anymore.

After OS X Mavericks v10.9.2 Update I cannot use my Apple TV anymore. There is a black screen. I cannot switch to the mirror option. I can use the apple tv from my iPad - so APTV is working. I have restart the computer and the apple TV.

These commands from the Terminal worked for me -
1. Open Terminal in /Applications/Utilities.
2. Run these commands respectively:
sudo rm -rf /System/Library/Extensions/APExtFramebuffer.kext
sudo rm -rf /System/Library/Extensions/AirParrotDriver.kext
sudo rm -rf /Library/Extensions/APExtFramebuffer.kext
sudo rm -rf /Library/Extensions/AirParrotDriver.kext
I found it on Intenret. I had AirParrot Intalled before.

OS X Mavericks v10.9.3 update monitor philips

The OS X Mavericks v10.9.3-update created a problem. The Philips Displayport Monitor 272C4Q doesn't show any image anymore. What left is a black screen. My iMac and MacBook Pro has the same problem. The computer sees the monitor, act like normal, but there is no image.
I haven't updated my MacBook Air: this one is still working properly. Help ...

Hi PierkePitt,
Sorry to see this, strange question, as the monitor still works on a Mac which hasn't updated to 10.9.3 there could be a problem with that particular OS update and the driver used for the monitor. You mention that it shows up under Displays in System Preferences, are you able to Click on the Arrange tab and click the Gather all windows button to bring over the display settings for the Phillips Monitor and see if it recognises the model and type of monitor?
I'd also try changing the resolution on that display temporarily to Scaled and see if a lower resolution does anything?

When updating OS X Mavericks v10.9.5 Update it downloads twice why?

After updating why does OS X Mavericks v10.9.5 Software Update Records show that it has installed itself and all other updates twice? Is this a error in the new update?

Double-entry usually occurs if you paused the DL and installation. That's all I have. For more info, contact http://www.apple.com/support/mac/app-store/contact/ which runs this service.

HT6065 OS X Mavericks v10.9.1 Update - Issues

Hi All
Since I have updated to Mavericks v10.9.1, on my Macbook Pro with retina, it has been acting up hectically. Everything would just freeze, and then the spinning beach ball of doom would appear and it would be spinning for about 10-20min. If nothing happens I have to restart my machine, and then everything would be back to normal, but after awhile the same issues would happen again. Please help.
Regards,
Gary454

Hi John,
So I have used Activity Monitor, and I have noticed there was a lot Google Chrome Notify helper activity. I am not sure if this has caused my MacbookPro Retina to freeze. But i have stopped using Google Chrome and started using Safari. Since I have started using Safari, my mac doesn't freeze any more. I hope this has fixed the problem.
I have read a tons of other discussion, regarding the mac's freezing after the 10.9.1 update and I see a lot of people have the same problem.
I have repaired my drive and fixed all my permissions via disk utility in safe mode. This should appreantly fix the problem. And then I tried to reinstall the offline update, but this gave me alert stating that the software is not supported on my system. Screen shot below:
I will have not had any problems after doing the above, but I will let you know if anything else come's up.
Thanks your time, much appreciate.
Gary

HT6114 OS X Mavericks v10.9.2 Update will not install after restart

My iMac continues to say I need to restart in order to install 10.9.2 but after restart it freezes up on the restart and then I have to shut down with power button. It always restarts after power shut down but then continues to say it needs to be restarted in order for install. This as been going on for weeks. I contacted Apple support - they want me to pay $ 19.99 so they can tell me how to fix their update! This is the first dissatisfied call to Apple I have had, hope it's not a trend!

I suggest you backup your data to an external drive as a clone. If your drive has issues you want to be sure your data is safely backed up.
Both of these applications are free to clone. You will need to purchase an external drive.
SuperDuper! http://www.shirt-pocket.com/
CCC http://www.bombich.com/download.html
If the Safe boot fails to help, I would boot into the Recovery Drive and run Repair Drive using Disk Utility. You cannot repair your drive while you are booted from the drive.
If this still fails, boot back into the Recovery Drive and re-install Mavericks.
Boot into Recovery Drive.
Hold down Command R key when restarting.
http://support.apple.com/kb/HT4718

OS X Mavericks v10.9.5 Update problems with Phocus software

I updated my mavericks today and now my Phocus Software (for my Hasselblad camera) crashes all the time. The software is very important for me and my work. Anyone who can help? Is it possible to 'regret' the update and go back?
I really appreciate if anyone can help me, Thanks

You could restore from the backup you made before the update. I would also contact the Phocus folks for help/guidance/workaround.
Barry

HT6114 OS X Mavericks v10.9.2 Update - How do you block incoming iMessages from individual senders?

Just trying to figured out how to block individual senders on iMessage (blocking feature added to 10.9.2). I thought that an option would exist in the application by going to the "Buddies" menu but alas, the option is greyed out on both my systems after the 10.9.2 update.
The help file associated says to
Select a conversation in the sidebar, or a buddy in your buddy list, then choose Buddies > Block.

A quick summary.
In Messages menu > Preferences > Accounts > iMessages account which now has a Blocked tab.
The Messages > Buddies Menu > Block only applies to AIM Accounts
You can also block them by name in Messages > Preferences > Accounts > AIM accounts Privacy tab > Block Specific People List button (Block by Screen Name)
Jabber Buddies are effectively "blocked" if they are not Authorised (to be a Buddy).
See also the Buddies Menu.
Many of the Menu items refer to iChat Actions which is the backbone of the app.
8:59 pm Thursday; February 27, 2014
 iMac 2.5Ghz i5 2011 (Mavericks 10.9)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad

HT6065 Latest Mavericks v10.9.1 update on 2010 MBP stuck at "Installing Software Update"?

While running the latest update, my 2010 MBP is stuck at "Installing Software Update". I installed Win7 on Bootcamp prior to running the update. How csan i tell if the Update is still running, the status bar is nearly completed. Thanks

i managed to resolve the issue by simply powering down and up again. Booted up fine and update shows to have completed successfully.

HT6065 Cannot connect to home wifi automatically despite upgrading to OS X Mavericks v10.9.1 Update

My MacBook Pro is unable to connect to my home wifi although there were no problems in the past. I realized that the problem was intermittent and then it became permanent. Each time I have to manually connect to my home wifi. This is despite having upgraded to the latest OS version Maverick v 0.9.1.

See if anything here helps - no guarantees, but sometimes any one of the suggestions has been known to work:
WiFi Problems:
Wifi problems seem to crop up a lot on here and unfortunately there doesn't seem to be a 'one fix' solution.
However, sometimes any one of the following can help although, unfortunately, not always. In no particular order:
Check wifi security - if it's WEP change it to WPA or WPA2 (preferably, as it's more secure)
Change the wifi channel on the router
Create a new Network Location: http://support.apple.com/kb/HT5289
Reboot the router
Also take a look at this link and the links within the article for other ideas. They mainly reference Lion, but still seem to be relevant to Mountain Lion and possibly Mavericks:
http://osxdaily.com/2011/11/06/lion-wi-fi-problems-solution-mac/?utm_source=feed burner&utm_medium=feed&utm_campaign=Feed%3A+osxdaily+%28OS+X+Daily%29&utm_conte n t=FaceBook
...and this link:
http://osxdaily.com/2012/11/30/resolving-stubborn-wi-fi-connection-problems-in-m ac-os-x/
Getting WiFi to automatically join the correct network:
System Preferences>Network>WiFi>Advanced Button
Delete all networks you don’t want to join
Tick the box ‘Remember networks this computer has joined’
Tick the box ‘Change networks’ under ‘Require administrator authorisation to…’
OK the changes
Tick the box ‘Ask to join new networks’
Apply the changes

HT6400: OS X Mavericks v10.9.5 Update crashes my rMBP

Every attempt to update from 10.9.4 to .5 crashes my 2012 rMBP.
Neither the app store install nor the .dmg from HT6400 have been successful.
My Macbook crashes upon restart and gives me the message: 'Your computer restarted because of a problem. Press a key or wait a few seconds to continue starting up.'
Then I receive the following error message.
Sat Sep 20 00:09:57 2014
panic(cpu 3 caller 0xffffff8000adc24e): Kernel trap at 0xffffff8000dd6a54, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x00007f928b021800, CR3: 0x0000000045a26046, CR4: 0x00000000001606e0
RAX: 0x0000000000000000, RBX: 0x0000000000000000, RCX: 0x00000000011f0000, RDX: 0xffffff8014329100
RSP: 0xffffff8170073730, RBP: 0xffffff8170073730, RSI: 0x0000000000000000, RDI: 0x0000000000000000
R8: 0xffffff8014ac8000, R9: 0x0000000000000000, R10: 0x0000000000000027, R11: 0x00000000000000ff
R12: 0x0000000000000006, R13: 0x0000000000000000, R14: 0x0000000000000020, R15: 0xffffff80145f0408
RFL: 0x0000000000010246, RIP: 0xffffff8000dd6a54, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x0000000000000010, Error code: 0x0000000000000000, Fault CPU: 0x5
Backtrace (CPU 3), Frame : Return Address
0xffffff81700733c0 : 0xffffff8000a22f79
0xffffff8170073440 : 0xffffff8000adc24e
0xffffff8170073610 : 0xffffff8000af3746
0xffffff8170073630 : 0xffffff8000dd6a54
0xffffff8170073730 : 0xffffff7f8240f40e
0xffffff8170073760 : 0xffffff8000db62c4
0xffffff81700737c0 : 0xffffff8000dcdb8f
0xffffff8170073a00 : 0xffffff8000dcd372
0xffffff8170073f50 : 0xffffff8000e40a33
0xffffff8170073fb0 : 0xffffff8000af3f46
      Kernel Extensions in backtrace:
         com.avira.kext.FileAccessControl(1.0d1)[9B1272E6-740C-35CE-8B9B-6BDA52125EB6]@0 xffffff7f8240d000->0xffffff7f82414fff
BSD process name corresponding to current thread: loginwindow
Mac OS version:
13E28
Kernel version:
Darwin Kernel Version 13.3.0: Tue Jun 3 21:27:35 PDT 2014; root:xnu-2422.110.17~1/RELEASE_X86_64
Kernel UUID: BBFADD17-672B-35A2-9B7F-E4B12213E4B8
Kernel slide:     0x0000000000800000
Kernel text base: 0xffffff8000a00000
System model name: MacBookPro10,1 (Mac-C3EC7CD22292981F)
System uptime in nanoseconds: 14363170867592
last loaded kext at 14351253169850: com.apple.driver.AppleIntelMCEReporter 104 (addr 0xffffff7f82f99000, size 49152)
last unloaded kext at 8455944226287: com.apple.driver.AppleUSBCDC 4.2.1b5 (addr 0xffffff7f82ebe000, size 16384)
loaded kexts:
com.seagate.driver.PowSecDriverCore 5.2.3
com.avira.kext.FileAccessControl 1.0.0d1
com.nvidia.CUDA 1.1.0
com.protech.NoSleep 1.3.3
com.apple.driver.AppleIntelMCEReporter 104
com.apple.driver.AudioAUUC 1.60
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.AGPM 100.14.28
com.apple.driver.ApplePlatformEnabler 2.0.9d6
com.apple.driver.X86PlatformShim 1.0.0
com.apple.iokit.IOBluetoothSerialManager 4.2.6f1
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleMikeyDriver 2.6.3f4
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHDA 2.6.3f4
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.2.6f1
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleUpstreamUserClient 3.5.13
com.apple.driver.AppleIntelHD4000Graphics 8.2.8
com.apple.driver.AppleSMCLMU 2.0.4d1
com.apple.GeForce 8.2.6
com.apple.driver.AppleThunderboltIP 1.1.2
com.apple.driver.AppleSMCPDRC 1.0.0
com.apple.driver.AppleIntelFramebufferCapri 8.2.8
com.apple.driver.AppleLPC 1.7.0
com.apple.driver.AppleMuxControl 3.6.22
com.apple.driver.AppleMCCSControl 1.2.5
com.apple.driver.AppleUSBTCButtons 240.2
com.apple.driver.AppleUSBTCKeyboard 240.2
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeLZVN 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 35
com.apple.driver.XsanFilter 404
com.apple.driver.AppleUSBHub 683.4.0
com.apple.iokit.IOAHCIBlockStorage 2.6.0
com.apple.driver.AppleSDXC 1.5.2
com.apple.driver.AirPort.Brcm4331 700.20.22
com.apple.driver.AppleAHCIPort 3.0.5
com.apple.driver.AppleUSBEHCI 660.4.0
com.apple.driver.AppleUSBXHCI 683.4.0
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleACPIButtons 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 2.0
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 217.92.1
com.apple.nke.applicationfirewall 153
com.apple.security.quarantine 3
com.apple.driver.AppleIntelCPUPowerManagement 217.92.1
com.apple.iokit.IOFireWireSBP2 4.2.6
com.apple.iokit.IOFireWireFamily 4.5.5
com.apple.iokit.IOSCSIBlockCommandsDevice 3.6.6
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 10.0.7
com.apple.iokit.IOBluetoothFamily 4.2.6f1
com.apple.driver.DspFuncLib 2.6.3f4
com.apple.vecLib.kext 1.0.0
com.apple.iokit.IOAudioFamily 1.9.7fc2
com.apple.kext.OSvKernDSPLib 1.14
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.2.6f1
com.apple.nvidia.driver.NVDAGK100Hal 8.2.6
com.apple.iokit.IOSurface 91.1
com.apple.driver.X86PlatformPlugin 1.0.0
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.nvidia.driver.NVDAResman 8.2.6
com.apple.iokit.IOAcceleratorFamily 98.22
com.apple.driver.AppleHDAController 2.6.3f4
com.apple.iokit.IOHDAFamily 2.6.3f4
com.apple.iokit.IOAcceleratorFamily2 98.22
com.apple.AppleGraphicsDeviceControl 3.6.22
com.apple.driver.AppleSMC 3.1.8
com.apple.driver.IOPlatformPluginFamily 5.7.1d6
com.apple.driver.AppleGraphicsControl 3.6.22
com.apple.driver.AppleBacklightExpert 1.0.4
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.driver.AppleSMBusController 1.0.12d1
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.driver.AppleUSBMultitouch 240.9
com.apple.driver.AppleThunderboltDPInAdapter 3.1.7
com.apple.driver.AppleThunderboltDPAdapterFamily 3.1.7
com.apple.driver.AppleThunderboltPCIDownAdapter 1.4.5
com.apple.iokit.IOUSBHIDDriver 660.4.0
com.apple.driver.AppleUSBMergeNub 650.4.0
com.apple.driver.AppleUSBComposite 656.4.1
com.apple.iokit.IOSCSIArchitectureModelFamily 3.6.6
com.apple.iokit.IOUSBUserClient 660.4.2
com.apple.driver.AppleThunderboltNHI 2.0.1
com.apple.iokit.IOThunderboltFamily 3.3.1
com.apple.iokit.IO80211Family 640.36
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOAHCIFamily 2.6.5
com.apple.iokit.IOUSBFamily 683.4.0
com.apple.driver.AppleEFINVRAM 2.0
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 278.11.1
com.apple.kext.AppleMatch 1.0.0d1
com.apple.security.TMSafetyNet 7
com.apple.driver.AppleKeyStore 2
com.apple.driver.DiskImages 371.1
com.apple.iokit.IOStorageFamily 1.9
com.apple.iokit.IOReportFamily 23
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 2.0
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
com.apple.kec.pthread 1
Model: MacBookPro10,1, BootROM MBP101.00EE.B02, 4 processors, Intel Core i7, 2.3 GHz, 8 GB, SMC 2.3f36
Graphics: Intel HD Graphics 4000, Intel HD Graphics 4000, Built-In
Graphics: NVIDIA GeForce GT 650M, NVIDIA GeForce GT 650M, PCIe, 1024 MB
Memory Module: BANK 0/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54333531533642465238432D50422020
Memory Module: BANK 1/DIMM0, 4 GB, DDR3, 1600 MHz, 0x80AD, 0x484D54333531533642465238432D50422020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xEF), Broadcom BCM43xx 1.0 (5.106.98.100.22)
Bluetooth: Version 4.2.6f1 14216, 3 services, 15 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SM256E, 251 GB
USB Device: Hub
USB Device: FaceTime HD Camera (Built-in)
USB Device: Hub
USB Device: Hub
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: Apple Internal Keyboard / Trackpad
Thunderbolt Bus: MacBook Pro, Apple Inc., 23.4

Mac users often ask whether they should install "anti-virus" software. The answer usually given on ASC is "no." The answer is right, but it may give the wrong impression that there is no threat from what are loosely called "viruses." There is a threat, and you need to educate yourself about it.
1. This is a comment on what you should—and should not—do to protect yourself from malicious software ("malware") that circulates on the Internet and gets onto a computer as an unintended consequence of the user's actions. It does not apply to software, such as keystroke loggers, that may be installed deliberately by an intruder who has hands-on access to the computer, or who has been able to log in to it remotely. That threat is in a different category, and there's no easy way to defend against it.
The comment is long because the issue is complex. The key points are in sections 5, 6, and 10.
OS X now implements three layers of built-in protection specifically against malware, not counting runtime protections such as execute disable, sandboxing, system library randomization, and address space layout randomization that may also guard against other kinds of exploits.
2. All versions of OS X since 10.6.7 have been able to detect known Mac malware in downloaded files, and to block insecure web plugins. This feature is transparent to the user. Internally Apple calls it "XProtect."
The malware recognition database used by XProtect is automatically updated; however, you shouldn't rely on it, because the attackers are always at least a day ahead of the defenders.
The following caveats apply to XProtect:
☞ It can be bypassed by some third-party networking software, such as BitTorrent clients and Java applets.
☞ It only applies to software downloaded from the network. Software installed from a CD or other media is not checked.
As new versions of OS X are released, it's not clear whether Apple will indefinitely continue to maintain the XProtect database of older versions such as 10.6. The security of obsolete system versions may eventually be degraded. Security updates to the code of obsolete systems will stop being released at some point, and that may leave them open to other kinds of attack besides malware.
3. Starting with OS X 10.7.5, there has been a second layer of built-in malware protection, designated "Gatekeeper" by Apple. By default, applications and Installer packages downloaded from the network will only run if they're digitally signed by a developer with a certificate issued by Apple. Software certified in this way hasn't necessarily been tested by Apple, but you can be reasonably sure that it hasn't been modified by anyone other than the developer. His identity is known to Apple, so he could be held legally responsible if he distributed malware. That may not mean much if the developer lives in a country with a weak legal system (see below.)
Gatekeeper doesn't depend on a database of known malware. It has, however, the same limitations as XProtect, and in addition the following:
☞ It can easily be disabled or overridden by the user.
☞ A malware attacker could get control of a code-signing certificate under false pretenses, or could simply ignore the consequences of distributing codesigned malware.
☞ An App Store developer could find a way to bypass Apple's oversight, or the oversight could fail due to human error.
Apple has so far failed to revoke the codesigning certificates of some known abusers, thereby diluting the value of Gatekeeper and the Developer ID program. These failures don't involve App Store products, however.
For the reasons given, App Store products, and—to a lesser extent—other applications recognized by Gatekeeper as signed, are safer than others, but they can't be considered absolutely safe. "Sandboxed" applications may prompt for access to private data, such as your contacts, or for access to the network. Think before granting that access. Sandbox security is based on user input. Never click through any request for authorization without thinking.
4. Starting with OS X 10.8.3, a third layer of protection has been added: a "Malware Removal Tool" (MRT). MRT runs automatically in the background when you update the OS. It checks for, and removes, malware that may have evaded the other protections via a Java exploit (see below.) MRT also runs when you install or update the Apple-supplied Java runtime (but not the Oracle runtime.) Like XProtect, MRT is effective against known threats, but not against unknown ones. It notifies you if it finds malware, but otherwise there's no user interface to MRT.
5. The built-in security features of OS X reduce the risk of malware attack, but they are not, and never will be, complete protection. Malware is a problem of human behavior, and a technological fix is not going to solve it. Trusting software to protect you will only make you more vulnerable.
The best defense is always going to be your own intelligence. With the possible exception of Java exploits, all known malware circulating on the Internet that affects a fully-updated installation of OS X 10.6 or later takes the form of so-called "Trojan horses," which can only have an effect if the victim is duped into running them. The threat therefore amounts to a battle of wits between you and the scam artists. If you're smarter than they think you are, you'll win. That means, in practice, that you always stay within a safe harbor of computing practices. How do you know when you're leaving the safe harbor? Below are some warning signs of danger.
Software from an untrustworthy source
☞ Software of any kind is distributed via BitTorrent, or Usenet, or on a website that also distributes pirated music or movies.
☞ Software with a corporate brand, such as Adobe Flash Player, doesn't come directly from the developer’s website. Do not trust an alert from any website to update Flash, or your browser, or any other software.
☞ Rogue websites such as Softonic, Soft32, and CNET Download distribute free applications that have been packaged in a superfluous "installer."
☞ The software is advertised by means of spam or intrusive web ads. Any ad, on any site, that includes a direct link to a download should be ignored.
Software that is plainly illegal or does something illegal
☞ High-priced commercial software such as Photoshop is "cracked" or "free."
☞ An application helps you to infringe copyright, for instance by circumventing the copy protection on commercial software, or saving streamed media for reuse without permission.
Conditional or unsolicited offers from strangers
☞ A telephone caller or a web page tells you that you have a “virus” and offers to help you remove it. (Some reputable websites did legitimately warn visitors who were infected with the "DNSChanger" malware. That exception to this rule no longer applies.)
☞ A web site offers free content such as video or music, but to use it you must install a “codec,” “plug-in,” "player," "downloader," "extractor," or “certificate” that comes from that same site, or an unknown one.
☞ You win a prize in a contest you never entered.
☞ Someone on a message board such as this one is eager to help you, but only if you download an application of his choosing.
☞ A "FREE WI-FI !!!" network advertises itself in a public place such as an airport, but is not provided by the management.
☞ Anything online that you would expect to pay for is "free."
Unexpected events
☞ A file is downloaded automatically when you visit a web page, with no other action on your part. Delete any such file without opening it.
☞ You open what you think is a document and get an alert that it's "an application downloaded from the Internet." Click Cancel and delete the file. Even if you don't get the alert, you should still delete any file that isn't what you expected it to be.
☞ An application does something you don't expect, such as asking for permission to access your contacts, your location, or the Internet for no obvious reason.
☞ Software is attached to email that you didn't request, even if it comes (or seems to come) from someone you trust.
I don't say that leaving the safe harbor just once will necessarily result in disaster, but making a habit of it will weaken your defenses against malware attack. Any of the above scenarios should, at the very least, make you uncomfortable.
6. Java on the Web (not to be confused with JavaScript, to which it's not related, despite the similarity of the names) is a weak point in the security of any system. Java is, among other things, a platform for running complex applications in a web page, on the client. That was always a bad idea, and Java's developers have proven themselves incapable of implementing it without also creating a portal for malware to enter. Past Java exploits are the closest thing there has ever been to a Windows-style virus affecting OS X. Merely loading a page with malicious Java content could be harmful.
Fortunately, client-side Java on the Web is obsolete and mostly extinct. Only a few outmoded sites still use it. Try to hasten the process of extinction by avoiding those sites, if you have a choice. Forget about playing games or other non-essential uses of Java.
Java is not included in OS X 10.7 and later. Discrete Java installers are distributed by Apple and by Oracle (the developer of Java.) Don't use either one unless you need it. Most people don't. If Java is installed, disable it—not JavaScript—in your browsers.
Regardless of version, experience has shown that Java on the Web can't be trusted. If you must use a Java applet for a task on a specific site, enable Java only for that site in Safari. Never enable Java for a public website that carries third-party advertising. Use it only on well-known, login-protected, secure websites without ads. In Safari 6 or later, you'll see a lock icon in the address bar with the abbreviation "https" when visiting a secure site.
Stay within the safe harbor, and you’ll be as safe from malware as you can practically be. The rest of this comment concerns what you should not do to protect yourself.
7. Never install any commercial "anti-virus" (AV) or "Internet security" products for the Mac, as they are all worse than useless. If you need to be able to detect Windows malware in your files, use one of the free security apps in the Mac App Store—nothing else.
Why shouldn't you use commercial AV products?
☞ To recognize malware, the software depends on a database of known threats, which is always at least a day out of date. This technique is a proven failure, as a major AV software vendor has admitted. Most attacks are "zero-day"—that is, previously unknown. Recognition-based AV does not defend against such attacks, and the enterprise IT industry is coming to the realization that traditional AV software is worthless.
☞ Its design is predicated on the nonexistent threat that malware may be injected at any time, anywhere in the file system. Malware is downloaded from the network; it doesn't materialize from nowhere. In order to meet that nonexistent threat, commercial AV software modifies or duplicates low-level functions of the operating system, which is a waste of resources and a common cause of instability, bugs, and poor performance.
☞ By modifying the operating system, the software may also create weaknesses that could be exploited by malware attackers.
☞ Most importantly, a false sense of security is dangerous.
8. An AV product from the App Store, such as "ClamXav," has the same drawback as the commercial suites of being always out of date, but it does not inject low-level code into the operating system. That doesn't mean it's entirely harmless. It may report email messages that have "phishing" links in the body, or Windows malware in attachments, as infected files, and offer to delete or move them. Doing so will corrupt the Mail database. The messages should be deleted from within the Mail application.
An AV app is not needed, and cannot be relied upon, for protection against OS X malware. It's useful, if at all, only for detecting Windows malware, and even for that use it's not really effective, because new Windows malware is emerging much faster than OS X malware.
Windows malware can't harm you directly (unless, of course, you use Windows.) Just don't pass it on to anyone else. A malicious attachment in email is usually easy to recognize by the name alone. An actual example:
London Terror Moovie.avi [124 spaces] Checked By Norton Antivirus.exe
You don't need software to tell you that's a Windows trojan. Software may be able to tell you which trojan it is, but who cares? In practice, there's no reason to use recognition software unless an organizational policy requires it. Windows malware is so widespread that you should assume it's in everyemail attachment until proven otherwise. Nevertheless, ClamXav or a similar product from the App Store may serve a purpose if it satisfies an ill-informed network administrator who says you must run some kind of AV application. It's free and it won't handicap the system.
The ClamXav developer won't try to "upsell" you to a paid version of the product. Other developers may do that. Don't be upsold. For one thing, you should not pay to protect Windows users from the consequences of their choice of computing platform. For another, a paid upgrade from a free app will probably have all the disadvantages mentioned in section 7.
9. It seems to be a common belief that the built-in Application Firewall acts as a barrier to infection, or prevents malware from functioning. It does neither. It blocks inbound connections to certain network services you're running, such as file sharing. It's disabled by default and you should leave it that way if you're behind a router on a private home or office network. Activate it only when you're on an untrusted network, for instance a public Wi-Fi hotspot, where you don't want to provide services. Disable any services you don't use in the Sharing preference pane. All are disabled by default.
10. As a Mac user, you don't have to live in fear that your computer may be infected every time you install software, read email, or visit a web page. But neither can you assume that you will always be safe from exploitation, no matter what you do. Navigating the Internet is like walking the streets of a big city. It's as safe or as dangerous as you choose to make it. The greatest harm done by security software is precisely its selling point: it makes people feel safe. They may then feel safe enough to take risks from which the software doesn't protect them. Nothing can lessen the need for safe computing practices.

Bash Update 1.0 for macs OS X Lion v10.7.5, OS X Lion Server v10.7.5, OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5

Do I upload the following update of 9/29/14 for OS X Lion v10.7.5, OS X Lion Server v10.7.5, OS X Mountain Lion v10.8.5, OS X Mavericks v10.9.5 as I ALREADY AM USING 10.9.5 which indicates Sept 18 update - should I seek it out and load it? It DID NOT come to me as a new update - I was just reading about updates an duplaods in MAC RUMOR, APPLE INSIDER THAN CLICKE DON THE Apple KB. Yes or no? THANKS

Most Mac users are not at risk. I suspect that the next scheduled security update will include this bug fix. I suspect it was released as a downloadable patch for Mac users that do things that would put them at risk and for Mac users that are worried (perhaps needlessly).
To be at risk, you need to run a web server AND that web server must be using CGI scripts that either directly use bash scripts or use a web server that invokes a CGI script via a bash command line hand-off. Very few consumer Mac owners do this, and Mavericks does not include the ability to easily start a web server.
Or you need to configure your Mac to allow anonymous ssh (Secure Shell) logins. This would be someone that is perhaps running a public GIT Hub source code control system. Very few Mac owners ever do anything like this.
You have enabled the Common Unix Printing System (CUPS) web Interface via a Terminal Session command line command (you would know if you did this).
If you do not do any of these things, it is very unlikely you will be at risk for the ShellShock bash bug.
NOTE: This bug is very serious business for commercial web servers running on Unix platforms, so I'm trying to downplay the seriousness, just that you have to be a member of a select class of Mac users to be at risk with your Mac OS X system.

Is OS X Mavericks v10.9.5 Update fixed?

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