Take that, spyware!

DDoS Attack Knocks Out DoubleClick Ads

DoubleClick Inc. suffered a DDoS (distributed denial of service) attack Tuesday that knocked out its popular online ad-serving service and its own corporate Web site for several hours, the company has confirmed.

The DDoS attack targeted DoubleClick's DNS (domain name system) and interrupted its ability to serve online ads to its 900 customers from about 10:30 a.m. EDT to 2 p.m. EDT, spokeswoman Jennifer Blum said.

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Is this the first of hacker strikebacks against spyware ...?