MacWasher X 

Webroot Software's MacWasher® X provides security on Macintosh OS X byallowing you to power-wash your activity history, protecting your privacy online & offline. The improved bleach feature allows you to completely wipe out data for total privacy.
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ATS Warning! The Boss! 

Avoid others seeing data in your PC (message programs, bank account numbers, photographs unsuitable for children) hiding windows, applications, the icons in the systray, and mute your sound card. Try the fully version of Warning! The Boss! FOR FREE
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1 Click Sweep 

1Click Sweep brings to you 10 + utilities that work together or separate so that no important traces are left after using the World Wide Web or your PC and other service that involves private data, identification and secure transfers of information.
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