DataBreachToday.com

Start Here: Strong Monitoring, Behavior-Based Controls, Virtual Patching
Thanks to Anthropic's Mythos presaging a world in which zero-day exploits are common, one cybersecurity expert says the new mantra is this: "assume you are unpatched." Vendors and customers must focus more than ever on strong monitoring, behavior-based controls and virtual patching.

Experts Warn of Faster and Higher Volume Attacks, Rising Patient Safety Worries
Emerging powerful AI tools - such as Anthropic's new Claude Mythos - that are capable of autonomously identifying and exploiting software bugs in a flash could reshape the healthcare cyber landscape by accelerating attacks and raising the risk of widespread operational disruption, experts said.

Project Glasswing Strengthens Key Platforms, Leaves Broad Exposure Untouched
Project Glasswing is giving select cybersecurity giants early access to Anthropic’s Claude Mythos Preview, boosting investor confidence in leaders Palo Alto Networks and CrowdStrike while raising concerns that smaller vendors, vulnerability firms and the broader internet will fall further behind.

Also, Medusa Ransomware, Grafana Flaw, German Political Party Breach
This week, German police unmasked a REvil leader, a critical Docker flaw, Medusa ransomware surged, DPRK hackers abused GitHub, Grafana AI bugs enabled data theft, scams hit $20B in the United States, Ivanti exploited and attacks hit Northern Ireland schools and a German political party.

Ruling Keeps Claude Models Out of Defense Systems During Separate Legal Challenges
A federal appeals court allowed the Pentagon to enforce its "supply-chain risk" designation against Anthropic, keeping its AI models barred from defense contracts while parallel litigation continues to challenge the policy’s legality and constitutional limits.

But Expect Plenty of Bottlenecks in Coordination, Validation and Patch Deployment
Anthropic's Claude Mythos Preview shows how AI can discover and chain vulnerabilities at scale, but the bigger challenge for defenders is redesigning disclosure, triage and patching processes so fixes can be deployed safely before attackers exploit the gap.

Okta's Brett Winterford on Identity Threats and Agentic AI Risks
AI is accelerating cyberattacks, collapsing timelines and exposing new identity risks. Okta's Brett Winterford explains how attackers are using AI to scale phishing, exploit credentials and infiltrate enterprises - and what CIOs must do to defend against this rapidly evolving threat landscape.

Pure Play OT Security Firms Want A Seat At The Table
There's growing concern in the operational technology cybersecurity community that manufacturers and operators, and their security vendors, will be left out in the cold by the latest efforts to use artificial intelligence in securing critical software.

Cyber threats are rising across SLTT and education environments, but most teams are already stretched thin. Learn how organizations are improving detection and response without adding staff or complexity.

Paris Backs Protectionism and Cybersecurity Requirements to Keep Out Chinese Firms
France is saying "non" to Chinese photovoltaic components through a mix of protectionism and cybersecurity requirements as it readies a government-backed program of new solar energy projects. Chinese cybersecurity laws require firms to share key information and generally cooperate with Beijing.

Defense of Democracies' Mark Montgomery on Warfare Trends, Geopolitical Threats
Cyber operations now support military strategy rather than just acting alone. Mark Montgomery of the Foundation for Defense of Democracies warns that as militaries integrate cyber and kinetic action, private sector enterprises are facing greater exposure to geopolitical threats.

Also: How AI May Democratize Cybercrime and How Everyday Routers Enable Espionage
In this week's ISMG panel, four ISMG editors discussed big shifts in cybersecurity: Anthropic's "dangerous" new AI model that can uncover thousands of zero-days, growing concerns about a surge in AI-driven flaws, and the FBI disrupting a Russian espionage campaign targeting everyday routers.

Why OT Security Comes Down to Risk Tolerance, Not Perfect Defense
Securing OT networks isn't about eliminating risk. It's about managing it strategically. Learn how a three-pillar framework of risk assessment, tolerance and acceptance, paired with a phased approach to microsegmentation, can turn an overwhelming challenge into a manageable journey.

Signature Healthcare EHRs, Patient Portal Offline; Some Cancer Care Cancelled
A Massachusetts healthcare system is diverting ambulance patients and is operating under downtime procedures as it deals with a cyberattack. The organization has also canceled certain cancer treatments, taken its patient portal offline and is unable to fill prescriptions at its retail pharmacies.

James Foster Points to Agentic Security and Need for Customers to Outsource Defense
CEO James Foster says managed detection and response is evolving into an AI-powered agentic model as enterprises face faster AI-driven threats. He stresses balancing automation with human expertise while positioning eSentire as a vendor-neutral platform integrating best-of-breed security tools.

CISA: Iran-Linked Groups Actively Exploiting OT Exposure Risks, PLC Programmers
Federal agencies are warning that Iranian-linked actors have begun actively exploiting internet-facing PLCs and misconfigured OT systems across U.S. critical infrastructure, enabling network access, lateral movement and potential disruption amid rising geopolitical tensions.

Anthropic Limits Access to New AI Model Amid Concerns Over Misuse
Anthropic asserted Tuesday that it's created a new era for cybersecurity after developing an artificial intelligence model too dangerous to release to public. The company's unreleased Claude Mythos Preview model has already found thousands of high-severity vulnerabilities.