Has CAPTCHA Been "Broken"?
20 Nov 2007 Has CAPTCHA Been "Broken"? A recent Wall Street Journal describes Ticketmaster's problems with online scalpers: The Internet era has brought speed and convenience to all sorts of consumer transactions. For concertgoers, however, it has also led to ever-faster sellouts for hot events. Ticketmaster deploys technology that is supposed to stop brokers from gaining access to large numbers o
OpenID や OAuth の役割と、既存のシングル・サインオンとの違い：Goodpic
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http://www.quarkruby.com/2007/9/20/ruby-on-rails-security-guide
