An anonymous reader writes: From EWeek: Research by FaceTime Communications has found risky Internet activity by employees poses an increasing threat to network security for corporate enterprises. While the number of unique malware instances was down last year when compared with the 2000 identified in 2005, FaceTime researchers warn today's malware is stealthier, more complex and harder to identify and defend against. According to an analysis of threats tracked or identified by FaceTime Security Labs, 1,224 unique threats on "greynet" applications — programs that network users download and install on their computers, usually without the knowledge of their IT department — were reported in the past year, with attacks over peer-to-peer networks increasing by 140 percent over 2005 levels and multichannel attacks jumping to 29 percent of all attacks in 2006 from 18 percent the prior year.
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