Difference between revisions 1110694091 and 1110694179 on enwiki

{{Short description|Analytics-based fraud detection system}}
{{Use dmy dates|date=April 2018}}
[[File:NuCaptcha logo.png|right|frameless]]
'''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]]-based firm NuData Security.<ref name="reg">{{cite web|url=https://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><ref name="theh">{{cite we(contracted; show full)t=Bursztein |author2=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" />
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[[File:NuCaptcha logo.png|right|frameless]]

== Technology ==
NuCaptcha attempts to solve usability of static image-based CAPTCHAs using two main technologies: 1) video animation to display CAPTCHA puzzles, and 2) a behaviour analysis system to monitor interactions with the platform.
# Video animation. CAPTCHAs are displayed as a video, and rendered in the web browser.  A variety of technologies can be used to display the animated CAPTCHA, such as Flash video, HTML5, or GIF.  Standard CAPTCHA techniques such as character crowding, once animated, are easier for humans to detect because of an innate motion-detecting ability.
# Behavior Aanalysis. Using machine-learning algorithms, NuCaptcha monitors platform interactions to tune the security of each CAPTCHA delivered to the user. Suspected attackers are given progressively more secure CAPTCHAs.<ref>{{cite web|url=http://www.readwriteweb.com/archives/nucatpcha_introduces_video_CAPTCHAS_better_securit.php|title=Video CAPTCHAs Promise Better Security, Less Frustration|work=Read, Write, Web|accessdate=30 June 2010}}</ref>

== Security ==
(contracted; show full)[[Category:Online companies of Canada]]
[[Category:Anti-spam]]
[[Category:Human-based computation]]
[[Category:Turing tests]]
[[Category:Access control software]]
[[Category:Computer security companies]]

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