Skype crash blamed on Patch Tuesday

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Skype crash blamed on Patch Tuesday

VoIP provider Skype said that the outage that crippled its service last week was due to a surge of users logging on after installing the latest Microsoft security patch.

The crash caused a two day outage of the service and prompted speculation that the VoIP provider had been victim to a massive denial of service attack.

Skype spokesman Villu Arak said in a posting to a company blog that while the outage was caused by a system crash, it was not due to a deliberate malicious effort.

The problem, explained Arak, arose when a large number of users installed Microsoft's August security update. After restarting their computers, the users all attempted to log in to the Skype service, causing an overload on the components of the service that handle peer-to-peer connections.

Normally, a "self-healing" feature would intervene and allow the system to correct or compensate for the increased load. That feature, however, never activated and the result was a chain reaction that took down the entire service.

"The issue has now been identified explicitly within Skype," Arak declared.

"We can confirm categorically that no malicious activities were attributed or that our users’ security was not, at any point, at risk."

Arak said that Skype has already patched the code responsible for the crash. Arak did not say that the system would be able to completely weather a similar flood of traffic in the future, but he did pledge that users would not be " similarly effected" the next time the issue arises.
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