Researchers break video CAPTCHAs, offer solutions
After creating the "Decaptcha" software to solve audio CAPTCHAs, Standford University's researchers modified it and turned it against text and, quite recently, video CAPTCHAs with considerable success.
Video CAPTCHAs have been touted by its developer, NuCaptcha, as the best and most secure method of spotting bots trying to pass themselves off as human users.
Unfortunately for the company, researchers Elie Bursztein, Matthieu Martin, Shang Ping, Jonathan Aigrain, Mike Bailey and John Mitchell have managed to prove that over 90 percent of the company's video CAPTCHAs can be decoded by using their Decaptcha software in conjunction with optical flow algorithms created by researchers in the computer vision field of study.
