Classified United States website

[3] According to the U.S. Department of State Foreign Affairs Manual, "OpenNet is a physical and logical Internet Protocol (IP)-based global network that links the Department of State's Local Area Networks (LANs) domestically and abroad.

OpenNet is a Sensitive But Unclassified (SBU) network, which supports e-mail and data applications.

"Any workstation used for development purposes may not serve as the operational repository of images, files, or other information associated with a Web site.

[10] FBINet is used internally by the Federal Bureau of Investigation for handling information that is classified up to the Secret level.

[3] The Joint Worldwide Intelligence Communications System (JWICS) is a secure TCP/IP network providing services such as hypertext and e-mail rated up to Top Secret and SCI.

[3][12][13] SI = Special / Secret Intelligence TK is a codeword classification, standing for Talent Keyhole, meaning IMINT.

Behind the Green Door secure communications center with SIPRNET , GWAN , NSANET , and JWICS access