Difference between revisions 613534578 and 617756909 on enwiki

{{Orphan|date=August 2011}}

'''NuCaptcha''' is an early fraud detection service which utilises behavior analytics to provision threat appropriate, animated video [[CAPTCHA]]'s. NuCaptcha is developed and operated by [[Canada|Canadian]]-based firm, NuData Security.<ref name="reg">{{cite web|url=http://www.theregister.co.uk/2010/07/01/animated_captcha/|title=Animated CAPTCHA tech aims to fox spambots|work=[[The Register]]|accessdate=14 July 2010}}</ref>(contracted; show full)

Static image-based CAPTCHAs are routinely used to prevent automated sign-ups to websites by using text or images of words disguised so that [[optical character recognition]] (OCR) software has trouble reading them.<ref name="reg" /> However, in common CAPTCHA systems, users often fail to correctly solve the CAPTCHA 7% - 25% of the time.<ref name="captcha-evaluation">{{cite web |first=Elie|last=Bursztein |
coauthors2=Bethard, Steven; |author3=Fabry, Celine; |author4=Mitchell, John C.; |author5= Jurafsky, Dan   |url=http://www.stanford.edu/~jurafsky/burszstein_2010_captcha.pdf|title= How Good are Humans at Solving CAPTCHAS? A Large Scale Evaluation|publisher=Stanford University |date=March 2010 |accessdate=2012-02-25}}</ref> NuCaptcha uses animated video technology that it claims make puzzles easier for humans to solve, but harder for bots and hackers to decipher.<ref name="reg" />
[[File:NuCaptcha logo.png|right|frameless]]

== Technology ==
(contracted; show full)[[Category:Internet companies of Canada]]
[[Category:Anti-spam]]
[[Category:Human-based computation]]
[[Category:Turing tests]]
[[Category:Access control software]]
[[Category:Web technology]]

{{Web-stub}}