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ブックマーク / haacked.com (1)

  • Honeypot Captcha

    I was thinking about alternative ways to block comment spam the other day and it occurred to me that there’s potentially a simpler solution than the Invisible Captcha approach I wrote about. The Invisible Captcha control plays upon the fact that most comment spam bots don’t evaluate javascript. However there’s another particular behavioral trait that bots have that can be exploited due to the bots

    Honeypot Captcha
    stealthinu
    stealthinu 2009/08/14
    captchaと言ってるけどcaptchaは関係ない。ダミーフィールドを作ってそれをCSSでかくしておいてなんか入力されてたたらスパム判定とうい手法。知ってたんだけど、これってここが出元なのかな?2007/9/11だから。
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