Hakin9 is a weekly downloadable IT security magazine. It provides invaluable and comprehensive technical knowledge, which allows the reader to stay up to date with the latest IT security threats and technologies. What makes this magazine so successful is its community base of countless expert contributors. Hakin9 is a must read for any security professionals who wish to have a broad view of their environment threats and the desire to proactively defend it by knowing the secrets that are usually only shared between crackers. Buy year subscription and you also gain access to full archive from 2005!
Official website: http://www.hakin9.org/