298 In 1988, President Ronald Reagan signed National Security Decision Directive (NSDD) 298. This document established the National Operations Security Program and named the Director of the National Security Agency as the executive agent for inter-agency OPSEC support. This document also established the Interagency OPSEC Support Staff (IOSS). International and private-sector application Although originally developed as a US military methodology, Operations Security has been adopted worldwide for both military and private-sector operations. In 1992, the North Atlantic Treaty Organization (NATO) added OPSEC to its glossary of terms and definitions. The private sector has also adopted OPSEC as a defensive measure against competitive intelligence collection efforts. Military and private-sector security and information firms often require OPSEC professionals. Certification is often initially obtained from military or governmental organizations, such as: U.S. Army OPSEC Support Element U.S. Navy OPSEC Support Team U.S. Marine OPSEC Support Team U.S. Air Force OPSEC Support Team U.S. Coast Guard Office of Security Policy and Management Joint OPSEC Support Element Interagency OPSEC Support Staff Other measures that impact OPSEC Communications security (COMSEC) Counter-intelligence (CI) Information security (INFOSEC) Signal security (SIGSEC) Transmission security (TRANSEC) Cybersecurity See also For Official Use Only – FOUO Information security Intelligence cycle security Security Security Culture Sensitive but unclassified – SBU Controlled Unclassified Information - CUI Social engineering References External links U.S. Government OPSEC site Operations Security Professionals Association National Security Decision Directive 298 Purple Dragon, The Origin & Development of the United States OPSEC Program, NSA, 1993. Operations Security (JP 3-13.3) PDF U.S. DoD Operations Security Doctrine. How to Conduct an OPSEC Assessment Information operations and warfare Espionage Computer security