You might have seen a recent analysis by Renesys of some sophisticated prefix hijacking increasingly happening in the Internet. I think many of us heard about the Pakistan-YouTube incident and similar misconfigurations, which are in fact a form of a DoS attack. But what Renesys discovered is something different. "Why settle for simple denial of service, when you can instead steal a victim’s traffic, take a few milliseconds to inspect or modify it, and then pass it along to the intended recipient?" - they wrote in the blog.
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