Skip to content
Search

Latest Stories

cipherbrief

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

Input clean

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

The Chalk Mark Still Matters: Russian Espionage Handling in the Modern Era

From dead drops and surveillance routes to covert digital communications, Russian espionage tradecraft remains disciplined, adaptive, and deeply relevant today.

The Chalk Mark Still Matters: Russian Espionage Handling in the Modern Era

KREMLIN FILES: A brush of a hand against a park bench with chalk; or, a piece of electrical tape left on a mailbox. Sometimes it’s a coded phrase [...] More

Open Source Report logo

The Open Source Report

<span>Global Intelligence Report for Wednesday, April 1, 2026</span>

Global Intelligence Report for Wednesday, April 1, 2026

Trump signals imminent Iran withdrawal, says securing Strait of Hormuz “not for us”

Pentagon weighs using anti-drone lasers in Washington airspace

Russia issues ultimatum on Donbas withdrawal, threatens harsher terms in peace talks

Israel vows Gaza-style destruction in southern Lebanon, blocking return of 600,000 residents

Access Today’s Report

Expert Insights

Cipher Brief Experts bring context to today’s global events

How Close the Iran War Came to a Nuclear Disaster

Walter Pincus

OPINION — “Nuclear facilities on both [the Iranian and Israeli] sides have been targeted. That’s where we are in this war, and that’s how far it’s escalated. If a nuclear reactor like [Iran’s] Bushehr [nuclear power [...] More

Trump’s Cyber Strategy Is a Strong Playbook, but It’s All in the Execution

Sophie McDowall
Rear Adm. (Ret.) Mark Montgomery

OPINION — The White House is making a significant effort toward putting the nation’s cyber house in order. A newly released National Cyber Strategy represents a big step in the right direction for U.S. national security [...] More

News & Analysis

Blockade by Permission: How Iran Determines Who Gets Through Hormuz

Blockade by Permission: How Iran Determines Who Gets Through Hormuz

For roughly two weeks, the Karachi, a Pakistani-flagged Aframax tanker loaded with crude at Das Island in Abu Dhabi, sat waiting for a signal that [...] More

Opinion

Iran Exposed a New Reality for U.S. Air Power

OPINION — For thirty years, American wars have contained a quiet assumption: that the skies were uncontested. From Grenada and Panama, through Desert [...] More

What’s on The Cipher Brief’s Digital Channel

Book Reviews

DIA - UNCONFIRMED – We’re hearing from the rumor mill that DIA Deputy Director Christine Bordine’s last day in that role was today (Wednesday) and that Greg Ryckman will serve as Acting Deputy Director. We’re also hearing that the permanent DD could be a political appointee but that’s nothing but rumor right now. We hear Martin Kindl is the new Deputy Director of Global Integration. He formerly served as DJ2 at Joint Staff and more recently as Deputy DDGI. CONFIRMED – Kelli Arena has been named as the new President and Chief Executive Officer of The National Cryptologic Foundation starting next month. A lot of insiders [...] More

Get The Drop

Events

Live Events

The Cipher Brief 2026 HONORS Awards

The Cipher Brief 2026 HONORS Awards

Join us for the third annual Cipher Brief Honors Dinner, the evening of March 13, 2026. This Black-Tie event is invite only, please apply here for a [...] More

Previous Event: 13 March, 2026

Podcasts

State Secrets

A mass-casualty attack at Sydney’s Bondi Beach in December 2025 shattered assumptions about the decline of ISIS - and raised urgent questions about what comes next.

In this episode of State Secrets, Suzanne Kelly speaks with terrorism experts Levi West and Andrew Zammit to unpack what made this attack different: months of planning, coordinated tactics, and a clear alignment with evolving ISIS strategy.

The discussion reveals a troubling shift - from isolated, impulsive attacks to more deliberate, semi-organized operations fueled by sophisticated propaganda and global events like the Gaza conflict. The group also examines how ISIS is leveraging English-language messaging, rebuilding momentum across regions like Afghanistan and the Sahel, and blurring the line between “inspired” and “directed” attacks.

Most importantly, they explore what this means for U.S. and allied security services at a time when counterterrorism is no longer the top global priority.

Bottom line: ISIS may look diminished - but the threat is adapting in ways that are harder to detect, disrupt, and defeat.