Sun Tzu's Art of War: An Operations Security Manual
by Catherine A. Howell
The term "operations security" or OPSEC was first used in the 1960s to describe the process by which one side in a conflict be it war or a diplomatic row, tries to prevent its adversary from gathering intelligence about its strategies, intents and/or operations. A successful application of OPSEC allows one's forces to control the battlefield achieving a measure of surprise against its adversary, and forcing that adversary to act in a way that is advantageous to one's forces.
OPSEC professionals have developed a five-step process needed to apply OPSEC to a "situation. This process involves identifying information critical to the success of a strategy and the extent of the threat against that information, determining how vulnerable that information is, assessing the risk to the information and developing and applying OPSEC countermeasures to protect that information.
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