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| sensitive information | |||
| Extremely Sensitive Information | |||
| top secret information | |||
| совершенно секретная информация: 12 phrases in 6 subjects |
| American usage, not spelling | 1 |
| Cryptography | 1 |
| Energy industry | 1 |
| General | 3 |
| Information security and data protection | 3 |
| Security systems | 3 |