Phrack

Phrack is an e-zine written by and for hackers, first published on November 17, 1985. It has a wide circulation which includes both hackers and computer security professionals.

Originally covering subjects related to phreaking, anarchy, and cracking, its articles now also cover a wide range of topics including cyber security, physical security, hacking, cryptography, counter culture, and international news.

Phrack has been described as having "its finger on the pulse of hacker culture", and being "hugely influential in the early days of hacker culture".

The magazine is run and published by a team of international volunteers and security professionals. It is available for free.