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AOL Mail uses many security measures to keep your account secure, one of which is CAPTCHA or image challenges when sending mail. These challenges exist to make it harder for hackers to access your accounts. The characters can't be read by a computer and must be entered manually, ensuring only a real person can pass the test. Why am I being ...
Five dice showing 41,256, which denotes "monogram" on an updated EFF cryptographic word list. Diceware is a method for creating passphrases, passwords, and other cryptographic variables using ordinary dice as a hardware random number generator. For each word in the passphrase, five rolls of a six-sided die are required.
reCAPTCHA Inc. [1] is a CAPTCHA system owned by Google.It enables web hosts to distinguish between human and automated access to websites. The original version asked users to decipher hard-to-read text or match images.
This CAPTCHA (reCAPTCHA v1) of "smwm" obscures its message from computer interpretation by twisting the letters and adding a slight background color gradient.A CAPTCHA (/ ˈ k æ p. tʃ ə / KAP-chə) is a type of challenge–response test used in computing to determine whether the user is human in order to deter bot attacks and spam.
The "captcha challenges" in this article, in both the 2007 and 2009 examples, are not a single challenge as the text makes them out to be but the computer generated words from two separate captchas put onto a single image. This is relatively easy to tell with experience, and is both inaccurate and annoying.
A security question is a form of shared secret [1] used as an authenticator. It is commonly used by banks, cable companies and wireless providers as an extra security ...
In order for the CAPTCHA to be resistant to such chance-guessing botnet attacks, the user would need to be forced to solve an annoyingly large number of images. recaptcha uses words from the English language, which only has about +/- 50,000 words.
We'll either refactor using the validation HTMLForm already provides, or rebuild the backend of the form on top of the API (which supports CAPTCHA delivery now, thanks to Brion). Regarding the email label: remember that most users don't expect email to be optional, it's actually kind of unusual compared to the other popular sites on the Web.