What are the methods, algorithms used to break CAPTCHA ?
+1
A:
The Security Now Podcast has an episode about this. Link to transcript follows.
http://www.grc.com/sn/sn-101.txt
Update, better links:
http://www.grc.com/sn/notes-101.htm http://www.grc.com/sn/sn-101.htm
magnifico
2009-02-14 00:42:35
A:
cletus
2009-02-14 00:50:20
A:
Depends on how rudimentary.
My friend was working on some captcha stuff, and sometimes the simplistic ones could be broken by applying filters and then passed into an OCR.
e.g. Edge filter -> OCR.
Calyth
2009-02-14 01:32:59