Have to use Java, but not happy about it. Ways to reduce risks?

Hi,
I've just realised that I have software that requires Java to run. I want to use this software, but I don't want to install Java. Currently, neither the software nor Java are installed on any of my Macs. Can someone advise me how I might mitigate the security impact of installing Java on my Mac mini and MacBook Pro? At the most extreme, I'd like to make sure that only this piece of software in particular can use it, and none other. I doubt that's actually possible, but it'd be nice. At the very least, I'd like to make sure that Java has absolutely _no_ internet access at all, and access to as little of my system as possible.
If it helps: the software that requires it will actually be run entirely from an external drive, as and when required. This drive will only be attached to a Mac when I need to use the software. Is there perhaps a way of installing Java to the external drive and telling the software to use it? That would substantially reduce security risks and additionally save space on my two Macs (one of which runs an SSD).
There's very, very little chance of this software losing its dependence on Java any time soon, but I've contacted the developer's tech support just to make sure.
Thanks

Scotch_Brawth wrote:
Hi,
I've just realised that I have software that requires Java to run. I want to use this software, but I don't want to install Java. Currently, neither the software nor Java are installed on any of my Macs. Can someone advise me how I might mitigate the security impact of installing Java on my Mac mini and MacBook Pro? At the most extreme, I'd like to make sure that only this piece of software in particular can use it, and none other. I doubt that's actually possible, but it'd be nice. At the very least, I'd like to make sure that Java has absolutely _no_ internet access at all, and access to as little of my system as possible.
The only way I know of to do what you want is to turn Java off after each use of this software.
Let me try to ease your mind, a bit.
There are no known exploits of Java vulnerabilities when used by an application on any version of OS X. All such malware used browser applets to do their thing. I'm sure somebody could figure out a way to insert something into a Java using application which to do so, but so far it has not happened, as far as we all know.
Flashback appears to be extinct according to this ESET document.
GateKeeper should be able to block any unsigned Java Applet.
Magmatic.com has posted some Java Hardening Tips.

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Have to use Java, but not happy about it. Ways to reduce risks?

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