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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 Wednesday, April 9, 2025

Report for Wednesday, April 9, 2025

U.S. pulls presence from key Ukraine arms aid hub in Poland

Trump’s massive ‘reciprocal’ tariffs are now in place

U.S. intelligence agency warns China attempting to recruit government employees

U.S., South Korean warship makers sign deal

Federal bank regulators suffer major email hack

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