Thursday, June 30, 2016

How Hard Can It Be To Visit All Possible Shortened Links?

from here

Shortening a link turns a hard problem, namely guessing a URL with a lot of possibly personal information in it (user credentials or some kind of authentication token), into a much easier problem - guessing a 5 or 6 digit code. The URLs people most want to shorten are the ones that are longest, and ironically the reason they're the longest is often because they contain the most personal or uniquely identifying information.