Windows Live Hotmail注册验证机制遭破解-快科技-科技改变生活

Windows Live Hotmail注册验证机制遭破解

Kaiputer
2008年04月16日 15:41
0

继Gmail的CAPTCHA验证机制遭到破解后，日前Windows Live Hotmail的CAPTCHA验证机制也不保，Websense Security演示了如何破解。

CAPTCHA 是“completely automated public Turing test to tell computers and humans apart”的缩写。在一个CAPTCHA测试中，作为服务器的计算机会自动生成一个问题由用户来解答。这个问题可以由计算机生成并评判，但是必须只有人类才能解答。由于计算机无法解答CAPTCHA的问题，所以回答出问题的用户就可以被认为是人类。

下图就是Windows Live Hotmail的CAPTCHA验证：

据称，恶意程序会在6秒钟内对这些字符进行一次猜测，有10%到15%的几率成功，而每天大概可以注册1440个左右的Windows Live Hotmail账号。

之前曾有大量垃圾Gmail账号被注册用于发送垃圾邮件，导致有不少网络服务商将Gmail列入了黑名。

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