The Interagency OPSEC Support Staff (IOSS) acts as a consultant to other U.S government departments or agencies by providing technical guidance and assistance that will result in self-sufficient OPSEC programs for the protection of the U.S. operations. IOSS is part of The National Operations Security Program, which was established to identify, control, and protect unclassified information and evidence associated with U.S. national security programs and activities.
OPSEC released a Safety Checklist regarding Social Networks that will help you to recognize your critical information and protect it. You can access the safety checklist here.
source: http://www.ioss.gov
