01-06-2014 DESIGN. Hide From Bots By Masking Tweets In CAPTCHA. Worried someone is spying on you 140 characters at a time? ... CAPTCHA Tweet is a tool to turn your tweets into CAPTCHA.

All: In a further effort to deter spam, Roanoke.com has added a "captcha" code bar for readers to type in before they enter a comment. We hope these human-readable images ...

Google is doing away with the time consuming tests on websites that ask you to verify you're not a robot. Captcha codes - which ask you to identify words or pictures - are designed to tell the ...