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Cybersecurity

When Hackers Get AI Co-Pilots: Frontier AI and the National Security Clock

Five intelligence services rarely speak with one voice. When they warn the window of vulnerability has narrowed to months, the real question is [...] More

The Latest

New Presidential Executive Order Targets Transnational Cybercrime

The Cipher Brief broke new ground when it published my piece addressing scams as a national security issue in December 2023. Two years later, there [...] More

GPS Denied: Time to Upgrade

The Global Positioning System (GPS) is arguably the greatest dual-use technology ever developed. It saves us trillions of dollars in wasted fuel and [...] More

America Is Digitally Fragile — and Our Adversaries Know It

America has entered a moment in which it is fundamentally more vulnerable than at any point in modern history. For the first time, the systems that [...] More

Defending the Homeland: Pentagon Shifts Strategy on Drone Threats

“This memorandum consolidates approximately ten separate outdated memoranda that were inadequate to address the current, complex unmanned aircraft [...] More

Human Agency in a Technology-Mediated World

Occasionally, a speech does more than mark a leadership transition or outline institutional priorities. It captures, with unusual clarity, the nature [...] More

2025: 10 Events That Changed the World

2025: 10 Events That Changed the World

SPECIAL REPORT — In a turbulent year, one of the biggest national security stories came in the form of a document.The administration’s National [...] More

Q&A: Interpol’s Cybercrime Chief on How AI is Driving Borderless Cyber Threats

EXCLUSIVE INTERVIEW — Anthropic’s announcement that Chinese state-sponsored hackers used its Claude AI technology for a largely automated cyberattack [...] More

Ransomware: Protecting Yourself from Cyber Extortion

Former GCHQ Chief: Cybersecurity, AI, and the New Age of Multilateral Defense

EXPERT INTERVIEW — The last few months have seen a series of major cyber incidents which have frozen airports, crippled companies, compromised [...] More

A New Frontline: How Digital Identity Fraud Redefines National Security Threats

A New Frontline: How Digital Identity Fraud Redefines National Security Threats

DEEP DIVE — From stolen military credentials to AI-generated personas seamlessly breaching critical infrastructure, digital identity fraud is rapidly [...] More

AI-Powered Adversaries Require AI-Driven Defenses

The use of artificial intelligence by adversaries has been the subject of exhaustive speculation. No one doubts that the technology will be abused by [...] More

The Hidden National Security Risk in Smart Cities

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

A Deniable Attack with Strategic Precision: Why the Red Hat Breach Looks More Like Statecraft Than Mere Crime

The timing was no coincidence.As the U.S. federal government ground to a halt at 12:01 a.m. EDT on October 1, 2025, a cybercriminal group calling [...] More