CAPTCHA


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AcronymDefinition
CAPTCHACompletely Automatic Public Turing Test to Tell Computers and Humans Apart
References in periodicals archive ?
Of course, CAPTCHA is always susceptible to being broken by programs for image processing.
The CAPTCHA filters on the "Write Your Representative" Web page may be unconstitutional as a "time, place, or manner" restriction.
In Are You a Human-sponsored surveys, 98 percent of users preferred PlayThru over traditional text-based CAPTCHAs.
This research focus not only on the underlying security issues raised by these CAPTCHA proposals, but also on their usability.
Zheng, "Filtering Short Message Spam of Group Sending Using CAPTCHA," In Proc.
CAPTCHA is a challenge-response test that ensures that a response during a user logon is not computer-generated but instead is truly entered by a human hand, by requiring a user to manually enter a small amount of text displayed in an image to help prevent automated registration and fraud.
Co-founded in 2011 by Luis von Ahn, the developer of CAPTCHA and reCAPTCHA, and Severin Hacker, Duolingo launched to public in June 2012.
India, March 11 -- Kaspersky Lab's security analysts have discovered first malware to successfully outwit the CAPTCHA image recognition system.
The task of human eye figuring out letters that are twisted and looped in crazy directions task is actually so complex that no one has been able to write computer code that translates these distorted letters the same way that neural networks can, which is why this test, called a CAPTCHA, is used to distinguish a human response from computer bots that try to steal sensitive information.
CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a class of HIPs which involve challenge-response tests that are there to verify that response is from human and not machine.
As this happens and spammers have a more difficult time breaking CAPTCHA codes through automated processes, spammers in emerging economies will devise a means to use real people to manually generate new accounts for spamming, thereby attempting to bypass the improved technology.
Worldwide Computer Products News-18 May 2009-D-Link adds CAPTCHA technology to home routers(C)1995-2009 M2 COMMUNICATIONS http://www.