Concealment devices or diversion safes are used to hide things for the purpose of secrecy or security. They are made from an ordinary household object...

smuggled by soaking individual pages with them. Books are used as a concealment device in part because they are readily available and inconspicuous in many...

secrecy Black project Clandestine cell system Classified information Concealment device Confidentiality Conspiracy theory Covert operation Cover-up Deception...

A hunting blind (US), hide or machan is a concealment device or shelter for hunters or gamekeepers, designed to reduce the chance of detection by animals...

suspicion. Any hidden location could serve. A dead drop spike is a concealment device similar to a microcache. It has been used since the late 1960s to...

controversy Full disclosure (computer security) Code talker Obfuscation Concealment device Zwicky, Elizabeth D.; Cooper, Simon; Chapman, D. Brent (2000-06-26)...

Intelligence Service. Agent handling Biographic leverage Concealment device Covert agent Covert listening device Cut-out Cyber spying Dead drop False flag operations...

Stoller (born 1946), who claims "Stealth" as a trademark Camouflage Concealment device Confidentiality Covert operation Ninjutsu Secrecy Subterfuge (disambiguation)...

compartments in vehicles, false bottoms in containers, and various other concealment devices. In the 1500s and 1600s, hidden rooms were created in British castles...

The episode focuses on Jimmy Bozart's role in breaking the case. Concealment device VIC cipher "Microfilm in Hollow Nickel Helped Lead FBI to Spy". Garden...