It's a good idea, but it might suffer one of the weaknesses that's mentioned on the MS site - a small image library can be duplicated by attackers and distributed to people to defeat the tool.
The petfinder solution does one one great strength - they have 2 million images (because there's no shortage of dumped animals, unfortunately). Regardless it's a bit of fun and it's perfect for one of my blogs. On 3/13/07, Jim Davis wrote: > > Damn - I postulated something similar here, last year I think (maybe on > community). In my case I was talking about using single pictures and asking > three multiple choice questions (for example: how many people have a hat > one? 0, 1 or 2; In the picture its? Daytime, NightTime or Can't Tell; The > people in the picture are looking at a? Table, TV, Oven. ) > > The same idea tho' - a captcha that could be answered completely by the > mouse and with much less ambiguity. Three radio buttons and you're in. > > I know... it's not like it's a hugely original idea. > > Still - I kind of like my idea better. At the very least: > > 1) A paragraph could be written that describes the image (but doesn't make > getting the answers very easy) for the visually impaired. > > 2) A single image can be larger and easier to see/use - with the MS one I > actually was "botted" at least once because the same pictures are sometimes > really awful - I couldn't tell if the brown splotch was feline or canine. > > 3) The MS one is open-ended - you don't know when you're "done". There > could be 5 cats or 3 or 7 - it takes more thought (I think). In mine there > are three questions with three answers each. It's a little clearer how much > work in entailed in moving forward. -- mxAjax / CFAjax docs and other useful articles: http://www.bifrost.com.au/blog/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Upgrade to Adobe ColdFusion MX7 Experience Flex 2 & MX7 integration & create powerful cross-platform RIAs http://www.adobe.com/products/coldfusion/flex2/ Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:272516 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4

