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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, May 21, 2025

Wednesday, May 21, 2025

Trump’s appoints new leader for $175 billion ‘Golden Dome’ anti-missile project

EU, Britain go ahead with new Russia sanctions over Ukraine without waiting for US

Kremlin says Russia will defend its ships in the Baltic Sea with all means available

New intelligence suggests Israel is preparing a possible strike on Iranian nuclear facilities

Multiple Russian government services impacted by DDoS cyberattack ‘from abroad.’

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