Related Clues:

• 'I swear I won't tell' contract, for short
• Doc meant to protect trade secrets
• Govt. org. with cryptanalysts
• Wiretapping org
• Confidentiality contract, in brief
• Org. protecting U.S. information systems
• SIGINT-gathering org
• Govt. counterintelligence group
• Member org. of the Five Eyes alliance
• Doc intended to protect confidentiality
• Govt. employer of cryptologists
• Org. behind an encrypted recruitment tweet
• Intelligence org. with a Cryptologic Museum
• Org. concerned with cyberwarfare
• Very secretive org