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Friday, April 25, 2014
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HellBound Hackers | Computer General | Increasing Security

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Author

RE: CAPTCHA Questions

yours31f
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Posted on 09-09-08 12:54
ok, so its good until someone sees it and makes a new filter, isn't everything?


Debugging is what programmers do to beta software to make it take up more room on your hard drive if it is running too efficiently.


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RE: CAPTCHA Questions


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Posted on 09-09-08 17:35
yours31f wrote:
So flipping text is only good until someone sees it?


Take that blind hackers. ^_^

Seriously though, if your intention is to secure an already existing captcha that can be broken, then you can assume that the person breaking the existing captcha has a somewhat solid understanding of arrays. 'Flipping' arrays is not that difficult of a concept beyond that.

Also, I am not aware of any common out-of-the-box bots that can break captchas.
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RE: CAPTCHA Questions


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Posted on 09-09-08 19:58
i think the best way is still to deform the letters like google does.


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RE: CAPTCHA Questions


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Posted on 09-09-08 22:18
sacman wrote:
i think the best way is still to deform the letters like google does.


Why?
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RE: CAPTCHA Questions


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Posted on 09-09-08 23:06
i guess because it is pretty hard to crack those and even if someone did the best success rate till now was 30% ? why else ?


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Posted on 10-09-08 02:39
sacman wrote:
i guess because it is pretty hard to crack those and even if someone did the best success rate till now was 30% ? why else ?


I was wondering what your reasoning for the claim you made was. I'm sure there are better success rates than 30%.. probably unknown ones.. where did you get that number from?


Google's captcha would be interesting to tackle
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Posted on 10-09-08 04:24
Chinchilla3k wrote:
I was wondering what your reasoning for the claim you made was. I'm sure there are better success rates than 30%.. probably unknown ones.. where did you get that number from?


Google's captcha would be interesting to tackle


good question i don't remember sry. it's bin a few months now so i don't recall the exact page. but i think u could google it ^^.

edit: i googled it now it's about 20 %, hmm i thought i saw one with a 30 % success rate


btw 30% is a huge number if it's about google .....

but i guess you are right the captcha 4 porn (funniest way to crack btw ^^) cracking has a 100 % success rate. but still that's not really solving it with an algorithm.


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RE: CAPTCHA Questions

AldarHawk
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Posted on 10-09-08 12:20
I am going to be playing with the wave functions for imagik. but just testing right now as there is 0 documentation on the bloody thing.

I will keep you all informed.


Just ask Yahoo!Taboo! http://www.erikwestlake.com
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