Keep Your Certificates Up To Date

Someone from a major aerospace manufacturer asked me for some cybersecurity assistance a few months ago. A security audit had resulted in a worrying but mystifying warning about SSL certificates. Their secure web site would cease functioning in just a few days. We fixed that, but similar deadlines are approaching over the next two years […]
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Are You Absolutely Certain That You Have The Real Source Code?

Why would you want to build a Linux kernel? Maybe you realize that there’s a local root exploit possible on your kernel version. Maybe you want to take advantage of improved storage performance or extended network capability. Maybe you need a very specific kernel version to support a combination of your motherboard hardware plus network […]
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What Does The Recent SHA-1 Attack Mean For You And Your Organization?

Some top cryptographers have recently announced a significant step toward breaking the SHA-1 hash algorithm. Their work is described here and here, and also check out their paper. What does this mean for you and your organization? Let me start with a bit of background so the following makes sense. What Is A Hash? A […]
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