Hacking
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The Best Hacking Tutorial Sites - Learn Legal Hacking
Any review of the best hacking sites wouldn't be complete without the inclusion of 2600 . First published in 1984, the long running magazine has been the inspiration for several generations of ethical hackers, publishing technical information including the intimate details of circuit switched POTS. 2600 Enterprises has a variety of ventures in addition to the magazine, and its web presence is a little lightweight. But for the sheer history and back-catalogue of hacking tricks, it's a valuable read.