Difference between revisions 1007650705 and 1060360866 on enwiki

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'''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 web|url=http://www.h-online.com/security/news/item/NuCaptcha-Flash-CAPTCHAs-to-combat-spambots-1032147.html|title=NuCaptcha Flash CAPTCHAs to combat spambots|accessdate=14 July 2010}}</ref><ref name="eweek">{{cite web|url=http://www.eweek.com/c/a/Security/Company-Looks-to-Slow-Spammers-With-Video-CAPTCHA-Technology-127193/|title=Spammers to Face Video CAPTCHA Technology - Security from eWeek|work=[[eWeek]]|accessdate=14 July 2010}}</ref><ref>{{cite web|title=Gartner Security & Risk Management Summit|url=http://agendabuilder.gartner.com/SEC19/webpages/VendorDetail.aspx?Vendor=96|work=[[Gartner]]|accessdate=18 June 2013}}{{dead link|date=December 2021|bot=medic}}{{cbignore|bot=medic}}</ref>

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 fail to correctly solve the CAPTCHA 7%{{nbsp}}{{ndash}}{{nbsp}}25% of the time.<ref name="captcha-evaluation">{{cite web |first=Elie|last=Bursztein |author2=Bethard, Steven |author3=Fabry, Ce(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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