Anthropic Offers Mythos Upgrade for Cyber Partners and a ‘Safe’ Version for the Rest of You

Anthropic is releasing Claude Mythos 5 to trusted organizations and Claude Fable 5 to the public, a version it says can’t be used for cyberattacks...

Prioritization of Risks from Artificial Intelligence: A Delphi Study of 272 International Experts

Artificial intelligence poses many risks, ranging from familiar present-day harms to unprecedented and potentially catastrophic ones. Effective risk management requires prioritization: we must understand which risks are most severe, who is most vulnerable, and who is most responsible for addressi...

Netherlands Seizes 800 Servers, Arrests 2 for Aiding Cyberattacks

Authorities in the Netherlands have arrested the co-owners of two related Internet hosting companies for operating IT infrastructure used by Russia to carry out cyberattacks, influence operations and disinformation campaigns inside the European Union. The two men were the focus of a 2025...

Cyberattacks are raising your prices (Lock and Code S07E09)

This week on the Lock and Code podcast… Your prices could be going up because of a little something that one group has started calling the “cyber tax.” Not a “tax” in any regulatory sense of the word, this newly named “cyber tax” is instead a consequence of the growing number of cyberattacks on...

Why Secure Data Movement Is the Zero Trust Bottleneck Nobody Talks About

Every security program is betting on the same assumption: once a system is connected, the problem is solved. Open a ticket, stand up a gateway, push the data through. Done. That assumption is wrong. It is also a major reason Zero Trust programs stall. New research my team just published puts...

Chinese Silk Typhoon Hacker Extradited to U.S. Over COVID Research Cyberattacks

A Chinese national accused of being a member of the Silk Typhoon hacking group has been extradited to the U.S. from Italy. Xu Zewei, 34, was arrested in July 2025 by Italian authorities for his alleged links to the Chinese state-sponsored threat group and for orchestrating cyber attacks against...

Making opportunistic cyberattacks harder by design

This is part of a series of blogs and interviews conducted with our Microsoft Deputy CISOs , in which we surface a number of mission-critical security recommendations and best practices that businesses can enact right now and derive real meaningful benefits from. In this article, Ilya Grebnov,...

Making opportunistic cyberattacks harder by design

This is part of a series of blogs and interviews conducted with our Microsoft Deputy CISOs , in which we surface a number of mission-critical security recommendations and best practices that businesses can enact right now and derive real meaningful benefits from. In this article, Ilya Grebnov,...

Germany Doxes “UNKN,” Head of RU Ransomware Gangs REvil, GandCrab

An elusive hacker who went by the handle "UNKN " and ran the early Russian ransomware groups GandCrab and REvil now has a name and a face. Authorities in Germany say 31-year-old Russian Daniil Maksimovich Shchukin headed both cybercrime gangs and helped carry out at least 130 acts of computer...

Threat actor abuse of AI accelerates from tool to cyberattack surface

For the last year, one word has represented the conversation living at the intersection of AI and cybersecurity: speed. Speed matters, but it’s not the most important shift we are observing across the threat landscape today. Now, threat actors from nation states to cybercrime groups are embedding...

Iran-Linked Handala Hackers Claim Major Hacks on Stryker and Verifone

Iran-linked Handala hackers claim cyberattacks on Stryker and Verifone. Stryker confirms network disruption while Verifone says no breach evidence found...

AI as tradecraft: How threat actors operationalize AI

In this article 1. AI as an enabler for cyberattacks 2. Post-compromise misuse of AI 3. Emerging trends 4. Mitigation guidance for AI-enabled threats 5. Microsoft Defender detections Threat actors are operationalizing AI along the cyberattack lifecycle to accelerate tradecraft, abusing both...

AI as tradecraft: How threat actors operationalize AI

In this article 1. AI as an enabler for cyberattacks 2. Post-compromise misuse of AI 3. Emerging trends 4. Mitigation guidance for AI-enabled threats 5. Microsoft Defender detections Threat actors are operationalizing AI along the cyberattack lifecycle to accelerate tradecraft, abusing both...

Report Finds Just 1% of Security Flaws Drive Most Cyberattacks in 2025

New VulnCheck research reveals that while thousands of CVEs are discovered yearly, only 1% drive real-world impact...

From Ransomware to Residency: Inside the Rise of the Digital Parasite

Are ransomware and encryption still the defining signals of modern cyberattacks, or has the industry been too fixated on noise while missing a more dangerous shift happening quietly all around them? According to Picus Labs’ new Red Report 2026, which analyzed over 1.1 million malicious files and...

A Defender-Attacker-Defender Model for Optimizing the Resilience of Hospital Networks to Cyberattacks

Considering the increasing frequency of cyberattacks affecting multiple hospitals simultaneously, improving resilience at a network level is essential. Various countermeasures exist to improve resilience against cyberattacks, such as deploying controls that strengthen IT infrastructures to limit...

A Cyberattack Was Part of the US Assault on Venezuela

We don't have many details: President Donald Trump suggested Saturday that the U.S. used cyberattacks or other technical capabilities to cut power off in Caracas during strikes on the Venezuelan capital that led to the capture of Venezuelan President Nicolás Maduro. If true, it would mark one of...

Reports About Cyberattacks Against Cisco Secure Email Gateway And Cisco Secure Email and Web Manager

On December 10, Cisco became aware of a new cyberattack campaign targeting a limited subset of appliances with certain ports open to the internet that are running Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Email and Web Manager. This attack allows the threat actors to...

AI Toys for Kids Talk About Sex, Drugs, and Chinese Propaganda

Plus: Travelers to the US may have to hand over five years of social media history, South Korean CEOs are resigning due to cyberattacks, and more...

Ukrainian Woman in US Custody for Aiding Russian NoName057 Hacker Group

Ukrainian national Victoria Dubranova is in U.S. custody, accused of supporting Russian hacker group NoName057 in cyberattacks on critical infrastructure. She has pleaded not guilty...