Ключевые слова: agreement, authorized, classified, communication, conditions, confidential, contract, data, document, employees only, file, firewall, forbidden, government, importance, important, information, isolated, label, law, memo, national interest, policy, precaution, privacy, private, prohibit, protection, regulation, restricted, safety, sealed, secrecy, secret, secure, security, sensitive, silence, spying, stamp, terms, text, threat, top, top secret, unauthorized, undercover, undisclosed,