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The Cipher Brief: National Security news, analysis and expert commentary.

Iran's Digital War Machine Targeting U.S. Infrastructure

Despite strikes on Iranian command centers, Tehran’s cyber operators continue targeting U.S. healthcare, energy, water, and government systems through dispersed networks and proxy groups.

Cybersecurity Photo Illustrations

The first missile strikes hadn’t even cooled before Iranian-linked hackers were moving. When the U.S. and Israel launched military operations against [...] More

Open Source Report logo

The Open Source Report

Global Intelligence Report for Wednesday, May 20, 2026

Trump says he was close to ordering Iran strikes as U.S. reviews military options

U.S. to cut troop levels in Europe, reportedly plans to shrink forces available to NATO during crises

Russians covertly trained by China return to fight in Ukraine

Nigeria says joint U.S. strikes kill 175 Islamic State militants, senior leaders

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Expert Insights

Cipher Brief Experts bring context to today’s global events

Intelligence at the Speed of Relevance: Rethinking the Intelligence Cycle for the AI Era

Geof Kahn

OPINION — There’s a profound assumption embedded in much of today’s conversation about AI and intelligence: better technology will solve our core problems. We need new infrastructure, better models, and faster [...] More

Inside the FBI’s New Push to Track Leaks and Monitor Employees

Walter Pincus

OPINION — “The FBI requests $7 million to procure and deploy a digital watermarking solution capable of embedding unique digital forensic watermarks in commonly shared documents to mitigate unauthorized disclosures from [...] More

News & Analysis

CHINA-RUSSIA-IRAN-DIPLOMACY

Moscow and Beijing’s shadow war: How Russia and China are keeping Iran lethal

The ceasefire between the United States and Iran is barely holding. Pakistani mediators are still shuttling between capitals, fighting has flared in [...] More

Opinion

Proscribing the IRGC Will Make Britain Safer

The United Kingdom must act to proscribe Iran’s Islamic Revolutionary Guard Corps, or IRGC, before it’s too late. The IRGC must be proscribed before [...] More

What’s on The Cipher Brief’s Digital Channel

Book Reviews

NOT EXACTLY ETERNAL JOY: The ping-pong defense didn't work. On May 3rd when Dead Drop last checked in on Lu Jianwang, AKA: "Harry Lu," he was on trial in Brooklyn federal court. His attorney was arguing that the six-story Chinatown building he ran was just a spot for Chinese diaspora members to renew their driver's licenses and play mahjong and table tennis. But a jury decided otherwise and convicted him of acting as an unregistered agent of the Chinese government. They also convicted him of obstruction of justice for deleting WeChat messages that prosecutors said contained orders from Beijing to silence and harass [...] More

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Events

Live Events

2026 Threat Conference

2026 Threat Conference

The Cipher Brief Threat Conference is the nation’s premier forum for non-partisan discussion of global threats and solutions as well as high-level [...] More

Upcoming: 25 October, 2026

Podcasts

State Secrets

Former Australian Signals Directorate Director-General Rachel Noble joins State Secrets with Suzanne Kelly for a rare insider’s look at the cyber battles shaping modern national security. From China’s targeting of critical infrastructure to Russia, Iran, AI-enabled threats, offensive cyber operations and the power of the Five Eyes alliance, Noble explains why the next conflict may already be underway - inside our networks.

In this episode:

  • Why the Australian Signals Directorate is one of the Five Eyes’ most important cyber and intelligence partners
  • How China is pre-positioning inside critical infrastructure and telecommunications networks
  • Why cyber criminals and state-backed actors are increasingly blurring together
  • What Russia, Iran and China are teaching the world about cyber conflict
  • How AI is accelerating both cyber defense and cyber offense
  • Why private sector companies may now be the first line of defense in modern conflict
  • What citizens can do to strengthen national cyber resilience
  • Why intelligence agencies need to better explain their mission to the public

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