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

How Far Should the U.S. Go to Defend Saudi Arabia?

Former senior CIA official Norm Roule examines how Washington can strengthen Saudi Arabia’s defenses against Houthi attacks without risking another open-ended conflict

Recent deadly attacks by Yemen's Iranian-backed Houthis inside of Saudi Arabia have raised questions about just how far the U.S. should go in helping [...] More

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The Open Source Report

<span>Global Intelligence Report for Friday, October 23, 2026</span>

Global Intelligence Report for Friday, October 23, 2026

Iran threatens expanded strikes on economic, civilian targets if U.S. launches offensive

Trump reportedly asked Musk to lift Ukraine’s Starlink restrictions, though Kyiv says limits remain

Surveillance and 'constant paranoia': Western diplomats tell BBC of life in war-time Moscow

Taiwan says China using militia boats to expand 'battlefield preparation' in western Pacific


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Expert Insights

Cipher Brief Experts bring context to today’s global events

Opinion

The Intelligence Community’s Missing Discipline

Economic statecraft has become a primary instrument of US national security, deployed with a frequency and ambition that outpaces the intelligence architecture built to support it. For sanctions, tariffs, investment [...] More

Opinion

The Thirteenth Mile: This Is What Gray Zone War Looks Like

On the morning of October 23, the cargo ship Khoryv sent a distress call 13 nautical miles off Constanța, Romania. Territorial waters end at twelve. Whoever flew the drone that sank her knew where the line was, and chose [...] More

News & Analysis

The 214th Separate Assault Battalion OPFOR Training Held In Ukraine

How Ukraine’s Ground Robots Are Changing the Battlefield

Operation Vivaldi, a Ukrainian military effort to repel Russian forces in the Donbas, has done much more than push back Moscow’s offensive in the [...] More

Opinion

We’re Losing the Cognitive Space Race

Over the last century, modern medicine achieved a historic feat. We increased the human lifespan by 33%. But at the same time, we completely failed [...] More

What’s on The Cipher Brief’s Digital Channel

Book Reviews

LICENSE TO MARVEL: Marvel’s upcoming Disney+ spy thriller “Zodiac” has recruited Israeli writers Amit Cohen and Ron Leshem, Deadline reports. The pair know the territory. Their credits include “8200,” named for Israel’s signals intelligence unit (roughly its answer to the NSA), and “Traitor.” Leshem also created the original Israeli version of “Euphoria.” The series will reportedly follow two spies hunting people with extraordinary abilities. Marvel Television chief Brad Winderbaum gave away little more at New York Comic Con earlier this month, The Playlist reported. He called it “a globetrotting, international espionage [...] 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

Previous Event: 25 October, 2026

The Cipher Brief 2027 HONORS Awards

The Cipher Brief 2027 HONORS Awards

Join us for the third annual Cipher Brief Honors Dinner, the evening of April 9, 2027. This Black-Tie event is invite-only. Please apply here for a [...] More

Upcoming: 09 April, 2027

Podcasts

State Secrets

Russia’s war against Ukraine is being fought on the battlefield, but another confrontation is unfolding across Europe. From drone incursions and sabotage operations to cyberattacks and threats against critical infrastructure, Moscow’s expanding gray zone campaign is raising urgent questions about NATO’s ability to respond.

In this episode of State Secrets, host Suzanne Kelly is joined by Dr. Jacek Siewiera, former head of Poland’s National Security Bureau and former senior national security advisor to the Polish president, and Dave Pitts, former senior CIA executive and co-founder of The Cipher Brief’s Gray Zone Group.

Together, they examine how Russia is using hybrid warfare to test NATO’s defenses, spread fear and uncertainty, and undermine European support for Ukraine. They also explore the growing risks posed by drone technology, the potential use of chemical and radiological weapons, and why traditional deterrence strategies may no longer be enough.

As Russia’s shadow war expands beyond Ukraine, what will it take for Europe and the United States to effectively deter Moscow before these threats escalate further?