Best File Compression Software

What is the best file compression software on Mac OSX in terms of both user-friendliness and performance?

Stuffit Deluxe's native .sitx archives make the smallest files. You can even set the compression rate. Smaller will take more time, but of course, saves more space. It's all I and my client's use. It even compresses .jpg images quite a bit, whereas .zip does almost nothing to them.
There are drawbacks to all formats, though. Zip and Stuffit both do a lousy job on video files. RAR will usually cut the size down by at least half. But the only way to create RAR files on the Mac is through the Terminal. It astounds me that no one has come up with an OS X native application for this. Or that Stuffit hasn't added it to their choices. Stuffit can open RAR files, so they obviously know how the compression scheme works. Why not add the option to create them?
As far as someone opening the Stuffit files you create? All a person needs to do is download the free Expander if they don't own Stuffit Deluxe or Standard.

Similar Messages

  • Hey All, what is the best file compression app to compress large video file on my Mac Book Pro?

    Hey All, do you recommend compressor 4 or what is the best file compression app to compress large video file on my Mac Book Pro?

    X,
    Thanks for checking in.  The anwser to your questions are below.
    Where is the material coming from?
    These are MP4 files from my Canon vixia HFR40
    What software are you using to edit the material?
    I am using iMOVIE 9.0.9
    What do you want to do with the files after compression? I want to email I need to have the file be smaller than 100MB to send.
    I am an actor and I video tape my auditions and send them to my agent so I need Highest Quality HD files that have small file sizes, no more than 100MB.  The scenes are like 1-5 Mins long in most cases. Thanks for your help.

  • Best file compression utility?

    What is the best file compression utility for the mac, and i mean the one that will compress the file the most.
    I want to compress a disk image to make it smaller. I remember downloading a file one time that compressed a dmg even further, but can't remember it.

    yeah i do realize a disk image (dmg) is already compressed, but i swore i found a dmg that was zipped into another format one time that compressed it even further.
    Do you know if the new Stuffit 12 STANDARD does the same compression as DELUXE? i really don't need all the extras deluxe offers for $80....

  • File compression software

    What fie compression software is recommended for mac's? just moved all my files across from Windows & mac doesnae recognise .zip files!

    Ahh, for that you'll need some other software. The built-in zip decoder in the Mac OS is fairly basic and does not cover that. For opening, [Stuffit Expander|http://my.smithmicro.com/mac/stuffit/expander.html] should work and is free. I don't use zip much, and definitely not password protected zip, so I don't know what other utilities might be out there. [BetterZip|http://macitbetter.com> looks promising, but isn't free. Stuffit Deluxe would work but is major overkill if this is all you need.

  • What are the File Compressions Softwares for mac

    Im looking for some zip softwares that i can use with mac osx 10.4 software, i realized that winzip is only for windows based os, but what can i use for the mac to open up zipped files and also be able to zip files to upload.

    Zip is built-in to OSX. Double-Click a .zip file to unzip it. To compress (Zip), select some files or folders, Right-Click (Cntrl-Click), and choose "Make Archive".

  • What is the best format to import images into iBA? How should I compress my images before importing? What is the best file format? PNG? Jpeg?

    What is the best format to import images into iBA? How should I compress my images before importing? What is the best file format? PNG? Jpeg? I'm trying to figure out the best file format / compression for importing images into iBA. Also, does anyone know how iBA will compress the file? Are the assets attached (like a website) or flattened out? Does anyone know how iBA handles this? Many many thanks to anyone with insight into this.

    This question is largely answered by the following thread...
    https://discussions.apple.com/message/17805700#17805700

  • What is the best sound conversion software for making apple sound files?

    What is the best sound conversion software for making apple sound files?

    Depending on the file formats, you may not have to do any conversion.
    The following shows what the native Quicktime Player Supports:
    http://support.apple.com/kb/HT3775
    and Quicktime Player is pretty much the core for all Apple app
    playback.
    And if that doesn't cover it, there are other players, many of
    which are free, that may cover what you need (WINAMP, VLC,
    Songbird etc.).

  • Who knows the best compression software?

    I have Stuffit expander but I need a good program to zip files for people on Macs or PCs. I haven't been able to find one online. Can anyone suggest a good compression software for Mac?
    Thanks

    Hi ZacharyZack, I too have & use Stuffit Deluxe 10, you can upgrade your version for only $29.99 if you want to have full & simple controll on stuffing & expanding, encrypting files.
    http://www.stuffit.com/mac/deluxe/index.html
    But has macjack said for compressing files for free OS-X can do this has mentioned.

  • Best mp4 compression possible for 50" TV

    Hi,
    I need to compressed my project (24fps, 1080p from FCP) to mp4 which will be run on a 50' TV via a computer (not sure what software but I was told it needs to be in mp4 format). If size isn't a factor, what's the best possible compression to get a very good quality on mp4 format?  Should I take the mpeg-4 setting and modify the bit rate to HIGH VBR? 
    Any help appreciated.

    The High VBR should do a decent job. Whether it's the best you can do will require some testing on your end.
    There was a recent thread on working from the H.264 presets and simply changing the extension to MP4 after encoding the file. I'm not sure whether that would work or not, but you could try. It certainly would give you comprehensive control over your quality.
    Alternatively, you could use MPEG Streamclip, which offers pretty good control but will definitely put your file in an MP4 wrapper.
    Russ

  • Compression software for Vado HD 2nd

    Could someone reccommend compression software for a Vado HD 2nd. Unless i can find some way to compress the rew files(most 3 minutes or less) the video is virtually worthless for internet updoading or emailing as it is mcuh two large in raw format as even short videos are about 50mbs.

    (Re: compression software for Vado HD 2nd? Thanks for the info. I started using Youtube for some of the videos, but some, especially where video quality is not important, I would like to have the email option. Handbrake should fit the bill for those. Thanks again for the valuable info, burrhead
    Just an FYI that the Vado file format is already a highly compressed format (H.264). it's just that it's also very high quality (ie HD) and file sizes are large for HD.
    That's just the fact of life if you want HD quality.
    If you want to downgrade the quality/bitrate/resolution, and are looking for a simple one-click solution, you can try a free app called "handbrake"
    <a rel="nofollow" href="http://handbrake.fr/"]http://handbrake.fr/[/url]
    However, In my opinion the best way to share videos with others isn't via email, but via Youtube. Upload your "raw" Vado file to youtube, and others will be able to view it in HD and the only thing you will need to send them is a URL not a file.
    Just an FYI that the Vado file format is already a highly compressed format (H.264). it's just that it's also very high quality (ie HD) and file sizes are large for HD. That's just the fact of life if you want HD quality.
    If you want to downgrade the quality/bitrate/resolution, and are looking for a simple one-click solution, you can try a free app called "handbrake"However, In my opinion the best way to share videos with others isn't via email, but via Youtube. Upload your "raw" Vado file to youtube, and others will be able to view it in HD and the only thing you will need to send them is a URL not a file.

  • Compression Software & Codecs

    Will Quicktime Pro and Final Cut Express export in SWF format?
    What is advantage of QuickTime format compared to Flash?
    (Flash seems to be a prominent and upcoming web standard.)
    If these Mac aps don't export .SWF, is Sorenson Squeeze Compression Suite a good choice for compression software?
    Any need to buy whole suite or just SSqueeze for Flash?
    http://www.sorensonmedia.com/
    Is main advantage to SSC that it is capable of using On2VP6 codec?
    Or are QTPro and/or FinalCutX capable of using it also?
    Or do they use a comparable, or better codec?
    If so, what?
    What is output format?
    What is best way of converting that format to .SWF?
    Is On2 Flix Exporter 8 plugin for Final Cut available for FCExpress?
    Is there any advantage to using Exporter versus Flix8Pro?
    F8Pro has Chroma Key, ability to create .SWF player and other extra features Exporter plug in doesn't have.
    http://www.on2.com/support-resources/system-reqs/
    If I'm using Flash 8 which can create Flash player, then there's no need for that feature
    But are Chroma Key and those other features capabilities that FinalCutExpress already has?
    http://www.on2.com/

    Hi Darrell,
    First, I suggest that you get a copy of Tom Wolsky's book Final Cut Express 2 Editing Workshop and also read some of Ken Stone's excellent articles. (Note: although many articles are written for FinalCut Pro, they are generally applicable to FinalCut Express also). These two resources will help you get up & operating in no time.
    In regard to video on the web, QuickTime (and as a consequence iMovieHD and FCEHD) does a right nice job, and there are quite a few choices built in. You're right, H.264 does require QT7 however since the QT player is free, I don't see that as a problem in the future. H.264 does an amazing job with video quality vs. file size. And while Flash is popular, I don't think I'd say that 'most users' have Flash installed. More likely they have QuickTime, however. Recall those millions of iPod users out there? They all have QuickTime on their systems, both Wintel & Mac, because iTunes itself is a QuickTime application.
    In regard to DVDs, if you're using iDVD or DVD Studio Pro, you'll be exporting from FCE via QuickTime anyway.
    Finally, I'd suggest getting started with what FCE already has built in. There's quite a bit already there, probably more than you would ever use, unless you envision serious media production for a living.

  • Best file type; JPEG, TIFF, PNG etc

    I'm using Iphoto 5 (can't decide to buy 06 or buy new Imac - still thinking on that ...) and wonder what is the best file type to use. When importing pictures from my camera they are jpeg's (haven't tried raw setting yet)- from my scanner I use TIFF. It appears the TIFF files are a lot larger - 20 to 50mb compared to the jpegs 1 to 5mb. I've opened the TIFF files in preview and save as JPEG to reduce the size and also scanned using JPEG format - I don't see any advanatge to the larger tiff files and the smaller jpegs are easier manipulated - am I'm missing something?

    Hi Arlington,
    There is an important difference between JPG and TIFF:
    JPG uses a lossy compression!!!
    Just try to open a JPG and save it under a new name as JPG. Repeat this ten times and then compare the last picture (..the one that got saved and re-saved ten times as a JPG) with the original one you should see a difference, the quality of the last image should be a lot less than the original.
    That's the difference - if you want to edit your pictures (e.g. in Photoshop) and quality is your first priority then go with TIFF. If you just download the pictures from your digital camera and store them then JPEG is your best choice.
    HTH,
    Koinseb

  • Best File Format For Online Line Art?

    I thought the conventional wisdom was that all line art for the screen should be saved as GIFs, all photographic line art should be saved as JPEGs.
    Then PNGs came along and offered an alternative to GIFs.
    I've been exploring this because I've been having a problem when exporting line art from Illustrator 8 as a PNG and opening it in Fireworks MX, where it appears washed out.
    I did a bit of research among comic strip artists -- the art I'm exporting from Illustrator is a comic strip -- and came up with conflicting results.
    Dilbert seems to save black and white line art as GIFs, e.g. http://dilbert.com/comics/dilbert/archive/images/dilbert2008611230313.gif
    ... But its Sunday colored strips seem to be saved as JPEGs, e.g. http://dilbert.com/comics/dilbert/archive/images/dilbert2008040261966.jpg
    Meanwhile Donnesbury seems to save colored comic strips as GIFs, e.g. http://images.ucomics.com/comics/db/2008/db080406.gif
    Any thoughts, suggestions?
    Thanks.

    I assume your line art is drawn as vector art in Illustrator, correct?
    As far as I'm concened, the "best file format for online line art" would be .swf, because it would retain its scaleable vector nature, and the Flash Player is most likely embedded in any reasonably recent computer's browser.
    But a little simple experimentation would be in order regarding file size. SWF (as exported from Flash, not necessarily AI) is very efficient. But the complexity of the line art could still make a given image require more bandwidth as .swf than as a rasterized version.
    The former conventional-wisdom regarding PNG is the old "not supported in older browsers" saw. I see even Firworks's online help still says:
    > However, not all web browsers can view PNG graphics.
    Personally, I think its way past time to stop cow-towing to outdated browsers and use PNGs anyway. So if it were me, and the nature of my line art required rasterization for online use, I would use PNG for its obvious advantages. But then, my livlihood is not affected by some minority of outdated web viewers not being able to view my PNGs.
    I would think that whatever color problems you are having in getting your AI files exported to PNG can be worked out with a little investigation/experimentation. (PNG supports color management profiles, so that alone may be your problem, and may be easily fixed in your workflow.) GIF is by definition limited to a subset of colors. JPEG is by definition a lossy compression format. So there are certainly precise color-accuracy issues with those overused formats, too.
    But again, that's just me. What little I do in web graphics that would involve this issue doesn't really affect my livelihood. Lowest-common-denominator compatibility may be more important to you.
    > Gilbert seems to...
    > Doonsbury seems to...
    The two images are very close to the same size (132K & 125K). They both include contone grads. Between JPEG and GIF, I would expect JPEG to more consistently yield acceptable results. Since GIF is limited to an 8-bit lookup table, I would expect aberations such as unwanted banding to be more likely in GIF if the artwork contains many colors and alot of highly-rendered shading.
    Since you specify
    line art, though, that would rule out contone fills, and you could use GIF with a very small color table.
    On the other hand, you do not specify whether you want to use transparency in your line art images. If you do, PNG would be far superior, because it supports true alpha transparency. In a GIF, if you can only make one particular color transparent. So even with line art, if the line art is antialiased at all, you'll have the ugly halos so commonly seen in GIFs when displayed on a wrong-colored background.
    The only functional "advantage" that I see in GIF over PNG is its multi-image capability, for quick & dirty frame-by-frame animation. My personal animation efforts focus entirely on Flash/SWF, and use scripted animation whenever possible to avoid frame-by-frame. But I recognize the simplicity convenience of animated GIFs for web banners and those (often-annoying) moving icons and such.
    JET

  • What is the best virus/spyware software for OSX 10.6.8?

    What is the best virus/spyware software for OSX 10.6.8 on an iMac?

    Csound1's answer albeit short is correct. Because there are no viruses (as in zero, none, nada, zip) for OS X having antivirus software is a waste of time, resources and possibly money. About the only need for antivirus software is if you frequently download files you know nothing about and then forward them to Windows users. In that case even though you still don't need anything for OS X you are protecting the Windows users from your passing along infected files. Most anti-virus software for OS X tend to create more problems than they solve however if  you insist I'd recommend ClamXav which is free, non-intrusive and is frequently updated.
    Roger

  • What is best free antivirus software

    what is the best free antivirus software for Macbook pro and IMac ?

    Mac users often ask whether they should install "anti-virus" (AV) software. The usual answer is "no." That 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 take control of it remotely. That threat is in a different category, and there's no easy way to defend against it. AV software is not intended to, and does not, defend against such attacks.
    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 been checked for security by Apple unless it comes from the App Store, 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 taken far too long to revoke the codesigning certificates of some known abusers, thereby diluting the value of Gatekeeper and the Developer ID program. Those lapses 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, not machine behavior, and no technological fix alone is 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 Internet criminals. If you're better informed 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 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. A genuine alert that Flash is outdated and blocked is shown on this support page. Follow the instructions on the support page in that case. Otherwise, assume that the alert is fake and someone is trying to scam you into installing malware. If you see such alerts on more than one website, ask for instructions.
    ☞ Software of any kind is distributed via BitTorrent, or Usenet, or on a website that also distributes pirated music or movies.
    ☞ 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. All "YouTube downloaders" are in this category, though not all are necessarily malicious.
    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 padlock icon in the address bar 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 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 every email 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 can be 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.

Maybe you are looking for