CSE 不鸟CSIS就对了，我以前一个单位也要background cleance, 单位也不鸟CSIS，只鸟RCMP。也是有期限的。
告诉你们个信息吧，每隔5年，CISS/CSE 雇员都要上测谎仪测试来更新背景调查background clearance。
CSE is Canada's national cryptologic agency, providing the Government of Canada with information technology security and foreign signals intelligence services.
CSE is Canada's national cryptologic agency, providing the Government of Canada with information technology security and foreign signals intelligence.
We are permitted to assist the Department of National Defence and the Canadian Armed Forces with cyber operations.
For example, CSE could protect Canadian forces by disrupting an adversary’s ability to communicate
How CSE gathers foreign intelligenceWe acquire foreign intelligence through our signals intelligence (SIGINT) capabilities.
SIGINT is the interception, decoding and analysis of communications and other electronic signals
The practice of intercepting electronic signals began in the early 1900s when transmissions from radios and telegraphs were captured, decoded, and used to inform military strategy.
Today, signals intelligence includes any form of electronic communication, such as telephone calls, text messages, computer and internet communications, satellite signals and more.
CSE uses a broad range of advanced capabilities to acquire intelligence from foreign targets outside of Canada.
Under the CSE Act, we can also interact with foreign targets operating on cyber networks and systems outside Canada.
We are prohibited by law from targeting the communications of Canadians or anyone in Canada