Let the bots fight it out

(New) dirt-cheap bots attack Hotmail Captchas | The Register

The Newcastle researchers took a decidedly different approach. They figured out a way to isolate each of the eight characters that make up a Hotmail Captcha image. Defeating Microsoft’s so-called segmentation-resistant technology was a major accomplishment. It blends the characters together in an attempt to thwart optical character recognition. Once they were able to segment the image – usually in about 80 milliseconds using a PC with a Core 2 and 2 GB of random access memory – the machine could easily read the individual characters.

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