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Communications Security Establishment Canada Profile picture
Communications Security Establishment Canada
@cse_cst
This account is not monitored 24/7 and does not act as a reporting platform. Suivez-nous en français : @CST_CSE
Jun 29, 2023 • 8 tweets • 3 min read
We’re proud to publish our 2022-2023 unclassified annual report!

Read it to learn more about the work we’ve done to protect Canada from foreign-based threats:

Some highlights ⬇️ https://t.co/MVu1L6dRqUcse-cst.gc.ca/en/accountabil…
CSE continued to play a key role in supporting Canada’s response to Russia’s invasion of Ukraine.
This included exposing Russia’s ongoing #disinformation efforts and providing #CyberSecurity support to Ukraine and Latvia. 🤝
Apr 13, 2022 • 11 tweets • 4 min read
Since Russia’s brazen and unjustifiable invasion of Ukraine, CSE continues to observe numerous Russia-backed #disinformation campaigns online.

Keep reading for observations pulled from our classified reporting on this issue. ⬇️ Upper left corner, a green ... ⚠️ Kremlin officials have been directly involved in guiding and coordinating Russia-backed #disinformation efforts.
Apr 1, 2022 • 7 tweets • 3 min read
As the Government of Canada’s foreign signals intelligence agency, CSE has a mandate to inform the government of the activities of foreign entities that threaten Canada or its allies, including #disinformation.

Thread. ⬇️ Upper left corner, a green check mark circled in navy blue w Since Russia’s brazen and unjustifiable invasion of Ukraine, we have observed numerous Russia-backed #disinformation campaigns online designed to support their actions.

Here are some observations pulled from CSE’s classified reporting on this issue.
Sep 4, 2018 • 24 tweets • 6 min read
Igor Sergeievich Gouzenko was a Soviet intelligence officer and cipher clerk stationed at the Soviet Union’s Ottawa embassy during the Second World War. Just weeks after the end of the war, Gouzenko left the Soviet embassy with documents that proved his country had been spying on its wartime allies Canada, Britain and the US, prompting what has come to be known as the Gouzenko Affair.