Bruce Schneier is an internationally renowned security technologist, author of 12 books as well as hundreds of articles, essays, and academic papers. He has testified before Congress, is a frequent guest on television and radio, has served on several government committees, and is regularly quoted in the press.
Bruce is a fellow at the Berkman Center for Internet and Society at Harvard Law School, a program fellow at the New America Foundation's Open Technology Institute, a board member of the Electronic Frontier Foundation, an Advisory Board Member of the Electronic Privacy Information Center, and the Chief Technology Officer at Co3 Systems, Inc.
Bruce Schneier is founder and CTO of Counterpane, an Internet security firm: www.counterpane.com 
Author of Applied Cryptography, Secrets And Lies, and Beyond Fear. He's a frequent critic of poor security practices. It may appear that his primary focus of criticism is Microsoft Security, but they are the largest target around. To be fair, he has given them due credit for their good security practices, too.
He has a blog: www.schneier.com
And publishes a free monthly newsletter: www.schneier.com
did he said anything about recent (2004+) progress in Web Services Security? For example, will he still consider SOAP a security risk if it is used within the WS-Security context? Delete When Cooked
05 Article on Bruce at www.mercurynews.com
Viewpoints
Praises for matters related to Microsoft Security
"Instead of making promises I didn't believe (Gates) could keep, he was demonstrating substantial improvement in many areas that are important, like internal development processes,"
Feb05 on MS initiatives at RSA conference, see www.techworld.com
"Simple. Clever. Elegant. (Ghost Buster rootkit detection)... (MS) should release this tool to the world. Make it public domain."
And not so impressed in other Microsoft Way practices
"MS has reasons to delay Trustworthy Computing document publication date so Windows Vista is not affected?". See more at Aug05 writeup at news.zdnet.com
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See original on c2.com