强制访问控制规定 一般安全属性可分为四个级别:最高秘密级(top secret)、秘密级(secret)、机密级(confidential)以及 无级别级(unclassified )。
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但在20世纪90年代中期,对撤销秘密文件的机密级有个时间表。
But in the mid-1990s, there was a schedule for declassifying secret documents.
根据美国国土安全部总监办公室的一份报告显示,国土安全部在处理机密级高度保密情报信息方面仍存在问题。
The Homeland Security Department still has problems handling classified top secret intelligence information, according to a new report from the department’s Office of the Inspector General.
英国国防部近日承认,今年以来,已有26个内含机要文件的小型存储设备丢失,其中3个属机密级,19个属限制级。
26 small storage devices have been lost this year, 3 of which held "secret" information while another 19 carried "restricted" data, Britain's Ministry of Defence recently admitted.
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