Hi,
Is there anybody who has some experiences in assuring CAPTCHAS against automatic character recognizing? While searching for useful information on this I found out that most CAPTCHAS (I'd even say more than 80%) are automaticly solveable and those who are more difficult for programs tend to be difficult for human beings as well.
Now what I'm wondering is how secure animated CAPTCHAS actually are. Given what I as a newbie on this matter have read so far, I don't think it's much more difficult to solve those than it is to solve non-animated ones.
Have a look at this page please: http://www.animierte-captcha.de/
There you see some examples of animated CAPTCHAS. The site states that the images are secure because they never show the whole string but only one part, however I'd say that those strings underneath the animation are easy to determine[. ____Can't a program just take a shot of the image, wait about half a second, make another shot, put those two together and then go on working on them]
Is there anybody who has some experiences in assuring CAPTCHAS against automatic character recognizing? While searching for useful information on this I found out that most CAPTCHAS (I'd even say more than 80%) are automaticly solveable and those who are more difficult for programs tend to be difficult for human beings as well.
Now what I'm wondering is how secure animated CAPTCHAS actually are. Given what I as a newbie on this matter have read so far, I don't think it's much more difficult to solve those than it is to solve non-animated ones.
Have a look at this page please: http://www.animierte-captcha.de/
There you see some examples of animated CAPTCHAS. The site states that the images are secure because they never show the whole string but only one part, however I'd say that those strings underneath the animation are easy to determine[. ____Can't a program just take a shot of the image, wait about half a second, make another shot, put those two together and then go on working on them]