Since Tuesday, Web sites belonging to the U.S. Treasury Department's Office of the Comptroller of Currency, the Associated Press and Motel 6 have all been defaced in separate attacks by malicious hackers, once again raising the specter of security vulnerabilities.
A common denominator in these hacks is that all three sites were running on Microsoft's IIS Web Server on Windows NT 4.0, which seems to be a favorite target of defacers. Many sites have not applied the patch released by the software giant.
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