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

Tehran’s Espionage Network in the U.S. Is Bigger and Bolder Than You Think

Iran’s spy playbook blends front companies, cyber ops, and diaspora coercion

A drone flies in front of an Iranian flag in southern Tehran, Iran, on December 29, 2024.

DEEP DIVE — Front companies, campus networks, diaspora recruits — Tehran’s espionage push on U.S. soil is bigger, bolder, and harder to track than [...] More

AmericasIranMiddle EastEspionage
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The Open Source Report

​US President Donald Trump (centre L) walks with Malaysia's Prime Minister Anwar Ibrahim (centre R) next to Air Force One upon arrival at Kuala Lumpur International Airport in Sepang on October 26, 2025

Global Intelligence Report for Monday, October 27, 2025

Monday, October 27, 2025

U.S. and China Reach Preliminary Trade Framework Ahead of Trump–Xi Summit

State Department Intelligence Agency Dissented Over Putin’s Appetite for Peace

Russia Reports Successful Test of Burevestnik Nuclear-Powered Cruise Missile

Trump says he will solve Afghanistan-Pakistan crisis ‘very quickly’

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Expert Insights

Cipher Brief Experts bring context to today’s global events

‘Show Us the Video’: Lawmakers Seek Transparency in Anti-Drug Boat Strikes

Walter Pincus

OPINION / FINE PRINT — “We have asked the Mexican government to also step up their involvement in stopping these cartels and stopping the huge amount of drugs that are coming across. If the Mexican navy saw a group of [...] More

AmericasLatin AmericaWalter PincusFine Print

AI-Powered Adversaries Require AI-Driven Defenses

John Hultquist

OPINION — The use of artificial intelligence by adversaries has been the subject of exhaustive speculation. No one doubts that the technology will be abused by criminals and state actors, but it can be difficult to [...] More

Tech/Cyber
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News & Analysis

The Caribbean Emerges as a Test of U.S. Power

The Caribbean Emerges as a Test of U.S. Power

DEEP DIVE — U.S. military forces this week carried out yet another strike on a vessel in Caribbean waters off Venezuela, marking the sixth such [...] More

AmericasLatin America

Opinion

The Hidden National Security Risk in Smart Cities

Anna Gielas

The Hidden National Security Risk in Smart Cities

OPINION — It is worryingly easy to get hold of personal and sensitive data on American military and intelligence personnel. Earlier this year [...] More

Tech/CyberAlternative Perspectives

What’s on The Cipher Brief’s Digital Channel

Tapping a China Vibe in South Koreaplay icon

Tapping a China Vibe in South Korea

The Open Source Report

Book Reviews

The Nuclear Age: How the Quest for the Bomb Redefined Power — and Still Shapes Today’s Global Order
The Nuclear Age: How the Quest for the Bomb Redefined Power — and Still Shapes Today’s Global Order

High On Hype – A Tabloid Take On Delta Force and Drugs
High On Hype – A Tabloid Take On Delta Force and Drugs

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The Best National Security Gossip

UKRAINE’S BOLD DRONE ARMY: There were a lot of headlines out of last week’s Cipher Brief Threat Conference in Sea Island but one of the biggest headlines came from Ivan Pavlenko, Chief of Ukraine’s Electronic Warfare Directorate, who joined the conference live from Ukraine - telling former CIA Director General David Petraeus (Ret.) that Kyiv deploys around 9,000 drones a day to counter Russia. Yep, you read that right. 9,000. Bloomberg's Natalia Drozdiak notes that General Petraeus, who now serves as Chairman of KKR’s Global Institute, called that number “staggering” in comparison to the few hundred thousand drones [...] More

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Events

Live Events

Threat Conference

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

Previous Event: 19 October, 2025

Podcasts

State Secrets

Shawn Chenoweth has one of the most fascinating titles in government, Director of Cognitive Advantage at the National Security Council. Sean explains the concept of cognitive advantage, the challenges of measuring success, and talks about the 'Kill Web' concept, which highlights the interconnectedness of information and cognitive processes in modern warfare.

Cover Stories: Spies, Books & Entertainment


David McCloskey, former CIA Analyst turned novelist is out with his fourth book, The Persian, about an Iranian dentist who is recruited by Mossad to take on a dangerous mission inside Iran. Cover Stories Host Suzanne Kelly digs in on how McCloskey’s real-life Intelligence background fueled his latest novel, and discovers a few of McCloskey’s own secrets along the way.