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The Cipher Brief curates open source information from around the world that impacts national security. Here’s a look at today’s headlines, broken down by region of the world.

Open Source Report for Thursday, May 22, 2025

Thursday, May 22, 2025

How Putin turned Brazil into a spy factory

Trump Tells European Leaders in Private That Putin Isn’t Ready to End War

Poland intervenes as Russian 'shadow fleet' ship spotted near power cable

Israeli preparations underway for possible strike on Iran if nuclear talks break down


Tech race with China is top intel priority, deputy CIA director says

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