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The Ten OPSEC Points:
Don't discuss current or future destinations or ports of call.
Don't discuss current or future operations or missions.
Don't discuss current or future dates and times of when military will be in port or conducting exercises.
Don't discuss readiness issues and numbers.
Don't discuss specific training equipment.
Don't discuss people's names and billets in conjunction with operations.
Don't speculate about current or future operations.
Don't spread rumors about current, future, or past operations or movements.
Don't assume the enemy is not trying to collect information on you; he is.
Be smart, use your head, and always think OPSEC when using email, phone, chat rooms and message boards.
Use extra caution in online chat rooms, forums, and online communities--even those with a 'brand name' such as Yahoo!, AOL, MSN or that define themselves as 'military' in origin. These can be monitored by individuals that have no reason to know personal information about your family, your Soldier, or your Soldier's location. There is no guarantee that a chat room or forum described as 'military' has any security for transmitting information or restricting membership to military personnel and their families only.