The Defense Information Systems Agency (DISA), known as the Defense Communications Agency (DCA) until 1991, is a United States Department of Defense (DoD) combat support agency composed of military, federal civilians, and contractors. DISA provides information technology (IT) and communications support to the President, Vice President, Secretary of Defense, the military services, the combatant commands, and any individual or system contributing to the defense of the United States.
Classified information is material that a government body deems to be sensitive information that must be protected. Access is restricted by law or regulation to particular groups of people with the necessary security clearance with a need to know. Mishandling of the material can incur criminal penalties.
The Defense Switched Network (DSN) is a primary information transfer network for the Defense Information Systems Network (DISN) of the United States Department of Defense. The DSN provides the worldwide non-secure voice, secure voice, data, facsimile, and video teleconferencing services for DOD Command and Control (C2) elements, their supporting activities engaged in logistics, personnel, engineering, and intelligence, as well as other federal agencies.
The Secret Internet Protocol Router Network (SIPRNet) is "a system of interconnected computer networks used by the U.S. Department of Defense and the U.S. Department of State to transmit classified information by packet switching over the 'completely secure' environment". It also provides services such as hypertext document access and electronic mail. As such, SIPRNet is the DoD's classified version of the civilian Internet.
The Non-classified Internet Protocol (IP) Router Network (NIPRNet) is an IP network used to exchange unclassified information, including information subject to controls on distribution, among the private network's users. The NIPRNet also provides its users access to the Internet.
The Defense Information Systems Network (DISN) has been the United States Department of Defense's enterprise telecommunications network for providing data, video, and voice services for 40 years.
Sensitive But Unclassified (SBU) is a designation of information in the United States federal government that, though unclassified, often requires strict controls over its distribution. SBU is a broad category of information that includes material covered by such designations as For Official Use Only (FOUO), Law Enforcement Sensitive (LES), Sensitive Homeland Security Information, Sensitive Security Information (SSI), Critical Infrastructure Information (CII), etc. It also includes Internal Revenue Service materials like individual tax records, systems information, and enforcement procedures. Some categories of SBU information have authority in statute or regulation while others, including FOUO, do not.
The Open Source Information System (OSIS) is the former name of an American unclassified network serving the U.S. intelligence community with open source intelligence.
The United States government classification system is established under Executive Order 13526, the latest in a long series of executive orders on the topic of classified information beginning in 1951. Issued by President Barack Obama in 2009, Executive Order 13526 replaced earlier executive orders on the topic and modified the regulations codified to 32 C.F.R. 2001. It lays out the system of classification, declassification, and handling of national security information generated by the U.S. government and its employees and contractors, as well as information received from other governments.
The Defense Data Network (DDN) was a computer networking effort of the United States Department of Defense from 1983 through 1995. It was based on ARPANET technology.
Intellipedia is an online system for collaborative data sharing used by the United States Intelligence Community (IC). It was established as a pilot project in late 2005 and formally announced in April 2006. Intellipedia consists of three wikis running on the separate JWICS (Intellipedia-TS), SIPRNet (Intellipedia-S), and DNI-U (Intellipedia-U) networks. The levels of classification allowed for information on the three wikis are Top Secret Sensitive Compartmented Information, Secret (S), and Sensitive But Unclassified information, respectively. Each of the wikis is used by individuals with appropriate clearances from the 18 agencies of the US intelligence community and other national-security related organizations, including Combatant Commands and other federal departments. The wikis are not open to the public.
The Joint Worldwide Intelligence Communication System is the United States Department of Defense's secure intranet system that houses top secret and sensitive compartmented information. JWICS superseded the earlier DSNET2 and DSNET3, the Top Secret and SCI levels of the Defense Data Network based on ARPANET technology.
The Defense Technical Information Center is the repository for research and engineering information for the United States Department of Defense (DoD). DTIC's services are available to DoD personnel, federal government personnel, federal contractors and selected academic institutions. The general public can access unclassified information through its public website.
The United States Intelligence Community A-Space, or Analytic Space, is a project started in 2007 from the Office of the Director of National Intelligence's (ODNI) Office of Analytic Transformation and Technology to develop a common collaborative workspace for all analysts from the USIC. It is accessible from common workstations and provides unprecedented access to interagency databases, a capability to search classified and unclassified sources simultaneously, web-based messaging, and collaboration tools. The Defense Intelligence Agency (DIA) is the executive agent for building the first phase of A-Space. Initial operational capability was scheduled for December 2007. A-Space went live on the government's classified Joint Worldwide Intelligence Communications System 22 September 2008. A-Space is built on Jive Software's Clearspace application.
Diplopedia, billed as the Encyclopedia of the United States Department of State, is a wiki running on a State internal Intranet, called "OpenNet". It houses a unique collection of information pertaining to diplomacy, international relations, and Department of State tradecraft.
STONEGHOST or "Stone Ghost", is a codename for a network operated by the United States' Defense Intelligence Agency (DIA) for information sharing and exchange between the United States, the United Kingdom, Canada and Australia. Some sources say that New Zealand is also participating, and that Stone Ghost therefore connects, and is maintained by the defense intelligence agencies of all Five Eyes countries.
A variety of networks operating in special security domains handle classified information in the United States or sensitive but unclassified information, while other specialized networks are reserved specifically for unclassified use by the same agencies. Some sites accessed from these networks have been referred to as "classified websites" in official communications, such as the American embassy "Amman's Classified Web Site at http://www.state.sgov.gov/pinea/amman/" and "Mexico City's Classified Web Site at http://www.state.sgov.gov/p/wha/mexicocity" Some of these trace back to the Defense Data Network which split from the Internet in 1983.
TNet is a secure top-secret-level intranet system in the White House, notably used to record information about telephone and video calls between the President of the United States and other world leaders. TNet is connected to Joint Worldwide Intelligence Communications System (JWICS), which is used more widely across different offices in the White House. Contained within TNet is an even more secure system known as NSC Intelligence Collaboration Environment (NICE).
Intelink itself is also mentioned in several novels written by Andy Mcnab, in particular Crisis Four.
