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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 Friday, May 23, 2025

Friday, May 23, 2025

G7 ministers threaten more sanctions against Russia over the war in Ukraine

Putin Says Russia Creating Buffer Zone Along Ukrainian Border

France, Saudi Arabia Aim to Disarm Hamas in New Peace Push

Iran warns Israel, US against any attack on its nuclear sites

Russian hackers target Western firms shipping aid to Ukraine, US intelligence says

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