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VoIP Security Overview - A layered approach

http://www.xmcopartners.com/whitepapers/voip-security-layered-approach.pdf

Orkut XSS worm in the wild (Collection of links/stories)

http://www.cgisecurity.com/2007/12/17
Sourcecode
http://www.marrowbones.com/commons/technosocial/2007/12/orkut_worm_code_and_why_was_go.html#more

80個以上のはてブ関連のGreasemonkeyまとめ

http://d.hatena.ne.jp/rikuo/20071216