Stuxnet and security dos and don'ts revisited

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In all of the panic and anxiety caused by Stuxnet, there's been lots of highly technical discussions of how the latest technology (e.g., application whitelisting, data diodes, etc.) might have been able to contain it. But all of this focus on what could have been done potentially distracts us from what is really at issue. There is no silver bullet. No matter what system you buy or what program you put in place, there is always going to be a way around or a possible/plausible threat. Your product may block what we see today, but what is on the horizon? What gets lost in all of this distraction is the importance of security fundamentals and of having proper expectations of your security program: provide a program or tools that minimize your exposure and maximize your ability to contain and recover from an event when it happens — and it will.

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