This document provides guidance on maintaining operational security (OPSEC) on social media. It advises avoiding sharing details about military service members' locations, units, future ship or base movements, personal information and schedules. The document outlines specific information that should not be shared, such as overseas base descriptions, unit morale or future plans. It suggests more general discussions of service, deployments and support for the military. Readers are encouraged to educate others on OPSEC and report any potential violations. Maintaining privacy settings and being cautious of online connections is also advised.