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hacking with URL shorteners

This article (https://freedom-to-tinker.com/blog/vitaly/gone-in-six-characters-short-urls-considered-harmful-for-cloud-services/) just gave me an excellent idea…

In a nutshell: these URLs are so short that you can explore a lot of them with a simple brute force approach. Just generate a random hash and there is a high chance that it points to somewhere.

Example: with bit.ly I generated a link: http://bit.ly/1bNGJd3 . I tried to modify some characters in the hash and in most cases it pointed to somewhere…

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