In the 1960s the KY-3, one of the first practical voice encryption devices, came on the market (which was the size of a short refrigerator or fat two drawer filing cabinet). ![]() Secure transmissions whether telephone conversations, facsimile (fax) copies, or automated information systems (AIS) communications have long been possible through encryption, but for many years the equipment was bulky, complex, and expensive. Products and services range from desktop secure phones and data modems, to fax encryptors and secure video. Government, local law enforcement agencies, banks, universities, multinational corporations and foreign governments. Granite Island Group provides a broad spectrum of information security protection protecting information transmission in a variety of mediums for the Secure Telephone Units, Crypto Key Generators, ![]() STU-III Secure Telephone Units, Crypto Key Generators, Encryption Equipment and Scramblers
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