How Pakistan knocked YouTube offline (and how to make sure it never happens again)

The supposed knocking off of YouTube by Pakistan generated significant coverage this week with Declan McCullagh at CNet reporting a dramatic dropping off of the worldwide availability of from 100 percent to 0 percent for over an hour. It didn’t recover completely until two hours had elapsed. Declan writes this high-profile incident “in which Pakistan’s state-owned telecommunications company managed to cut YouTube off the global Web highlights a long-standing security weakness in the way the Internet is managed. After receiving a censorship order from the telecommunications ministry directing that be blocked, Pakistan Telecom went even further. By accident or design, the company broadcast instructions worldwide claiming to be the legitimate destination for anyone trying to reach YouTube’s range of Internet addresses.”

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