Even in Europe, we have a rough idea of what Thanksgiving is about, though we don't celebrate it at the same time or in the same way. However, Black Friday and Cyber Monday are rather less well known outside the US.
Since Randy has already blogged on Cyber Monday and its security implications at http://www.eset.com/threat-center/blog/2009/11/19/is-cyber-monday-the-end-of-shopping-as-we-know-it, I took the opportunity to air a slightly more Eurocentric view at http://blog.isc2.org/isc2_blog/2009/11/they-call-it-cyber-monday-but-tuesdays-just-as-bad.html.
While you're away from this blog site, you might also be amused, in a cynical sort of way, by the fact that Qinetiq and New Scientist have solved the virus problem once and for all: http://avien.net/blog/?p=92. I believe they'll be starting on solving the Millennium Bug issue any year or now.
David Harley BA CISSP FBCS CITP
Director of Malware Intelligence
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Author David Harley, We Live Security