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Welcome to wild wild world of Microsoft. New beta Anti-Spyware program detect Norton Anti-Virus program as a password-stealing program and prompts users to remove it :/? It detects Symantec Antivirus files as PWS.Bancos.A
The lesson is simple do not install beta products in production environment. More information available at washingtonpost, Slashdot and Microsoft support forum.
Microsoft said that it is goona update it anti-spyware software to remove Sony rootkit. It will remove the file-hiding capabilities of the anti-piracy software installed by some Sony BMG music CDs. Get more here