From: Mike N. 

"Where there's smoke, there's a door. A U.K. security company is
warning that smokers may impact IT security, leaving open doors that could
let in intruders who could abuse a company's network.

It may sound slightly far-fetched. But a penetration tester from NTA
Monitor, a company based in Rochester, England, gained access to a
professional services company outside London that way, said Roy Hills,
technical director.  "

http://www.infoworld.com/article/07/02/16/HNsmokersweaklink_1.html

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