Unlicensed broadcasting
Unlicensed broadcasting, also called pirate broadcasting is a term used for any type of broadcasting without a broadcast license.Some unlicensed broadcasting, such as certain low-power broadcasting, ...
Diplomatic Telecommunications Service
The Diplomatic Telecommunications Service (DTS) is a system of integrated telecommunications networks that supports foreign affairs agencies in Washington, D.C., and U.S. diplomatic missions abroad. I...
Pirate radio
Pirate radio is illegal or unregulated radio transmission for entertainment or political purposes. While pirate just refers to the illegal nature of the broadcasts, there have also been notable pirate...
Cherry Ripe (numbers station)
Cherry Ripe was the nickname of a mysterious, powerful shortwave numbers station that used several bars from the English folk song "Cherry Ripe" as an interval signal. The station was believed to be o...
The Pip
The Pip is the nickname given by radio listeners to a shortwave radio station that broadcasts on the frequency 5448 kHz by day, and 3756 kHz during the night. It broadcasts short, repeated b...
UVB-76
UVB-76, also known as "The Buzzer", is the nickname given by radio listeners to a shortwave radio station that broadcasts on the frequency 4625 kHz. It broadcasts a short, monotonous  buzz t...
UVB-76 - Wikipedia
Lincolnshire Poacher (numbers station)
"The Lincolnshire Poacher" was the common name given to a powerful shortwave numbers station. The station gained its commonly known name as it uses bars from the English folk song "The Lincolnshire Po...
Lincolnshire Poacher (numbers station) - Wikipedia
Yosemite Sam (shortwave)
Yosemite Sam is the nickname given by DXers to a number station that first surfaced on December 19, 2004. It transmits on several shortwave frequencies in dual side band: 3700 kHz, 4300 kHz, 6500 kHz,...
Blacker (security)
Blacker (styled BLACKER) is a U.S. Department of Defense computer network security project designed to achieve A1 class ratings of the Trusted Computer System Evaluation Criteria (TCSEC). The project ...
Red/black concept
The red/black concept, sometimes called the red-black architectureor red/black engineering,refers to the careful segregation in cryptographic systems of signals that contain sensitive or classified pl...
Red/black concept - Wikipedia
The Conet Project
The Conet Project: Recordings of Shortwave Numbers Stations is a four (later five) CD set of recordings of numbers stations and noise stations: mysterious shortwave radio stations of uncertain origin ...
Letter beacon
Letter beacons are radio transmissions of uncertain origin and unknown purpose, consisting of only a single repeating Morse code letter. They have been classified into a number of groups according to ...
Letter beacon - Wikipedia
Secure communication
Secure communication is when two entities are communicating and do not want a third party to listen in. For that they need to communicate in a way not susceptible to eavesdropping or interception. Se...
Warrenton Training Center
Warrenton Training Center (WTC) is a classified U.S. government communications complex located in the state of Virginia. Established in 1951, it comprises four discrete stations located in Fauquie...
Defense Red Switch Network
The Defense Red Switch Network (DRSN) is a dedicated telephone network which provides global secure communication services for the command and control structure of the United States Armed Forces. The ...
Defense Red Switch Network - Wikipedia
Beltsville Communications Annex
The Beltsville Messaging Center (BMC), formerly named the Beltsville Communications Center (also known as the Beltsville Communications Annex), is a United States Department of State facility located ...
SSL termination proxy
An SSL termination proxy is a proxy server that is used by an institution to handle incoming SSL connections, decrypting the SSL and passing on the unencrypted request to the institution's other serve...
Anonymity
Anonymity, adjective "anonymous", is derived from the Greek word ἀνωνυμία, anonymia, meaning "without a name" or "namelessness". In colloquial use, "anonymous" is used to describe situations where the...
Anonymity - Wikipedia
Pirate television
A pirate television station is a broadcast television station that operates without a broadcast license. Like its counterpart pirate radio, the term pirate TV lacks a specific universal interpretatio...
Encryption
In cryptography, encryption is the process of encoding messages or information in such a way that only authorized parties can read it. Encryption does not of itself prevent interception, but denies th...
Encryption - Wikipedia
Numbers station
A numbers station is a type of shortwave radio station characterized by unusual broadcasts, reading out lists of numbers or incomprehensible morse code messages. The voices are often created by speech...
Numbers station - Wikipedia
Laser microphone
A laser microphone is a surveillance device that uses a laser beam to detect sound vibrations in a distant object. This technology can be used to eavesdrop with minimal chance of exposure.The object i...