The Comprehensive Security Encyclopedia

On April 1, 2007, the Media Jihad Brigade posted on Islamist websites a 118-page text titled "The Comprehensive Security Encyclopedia." The document includes 10 chapters dealing with Internet security (e.g. data protection and information concealment), secure phone communication (e.g. voice distortion and avoiding "trigger words" that raise suspicion), secure ways of purchasing weapons and handling explosives, and other matters including training safety, espionage techniques, concealing information during interrogation and imprisonment and deceiving lie detectors.

Below is the front page of the document: