Skip to content
Search

Latest Stories

cipherbrief

Welcome! Log in to stay connected and make the most of your experience.

Input clean
The Open Source Report logo: yellow on blue background

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 Monday, April 21, 2025

Report for Monday, April 21, 2025

Hegseth accused of sharing military details in second Signal chat with wife, brother, lawyer

Trump Administration Draft Order Calls for Drastic Overhaul of State Department

Kyiv Is On the Clock to Respond to Trump Plan to End Ukraine Conflict

Iran, US task experts to design framework for a nuclear deal, Tehran says

China's U.S. envoy urges end to trade war, but warns Beijing ready to fight

You've reached subscriber-only content

Unlock expert intelligence: your gateway to exclusive security insights trusted by global leaders

2270274761 2270274859 2270274929 2270274437