This document provides information about operational security (OPSEC) for families of soldiers deployed overseas. It explains that OPSEC is about protecting information that could endanger soldiers, such as details about their location, missions, or departure/return dates. It warns that small pieces of information shared online can reveal more when combined. While social media can help stay connected, privacy settings should be used and only real friends accepted. Sharing any secrets could accidentally leak intelligence to adversaries. Maintaining OPSEC awareness is important for protecting soldiers.