Tables Turned: Gentlemen Ransomware Group Suffers Data Leak

Mathew J. Schwartz • May 11, 2026

Ransomware group The Gentlemen, a relative newcomer to the cybercrime scene, suffered a leak of its internal communications, revealing previously non-public victims, a variety of tactics, techniques and tools, and a relentless focus on popping backup and storage infrastructure.

Cybercrime

Ransomware-Wielding Attackers Target cPanel and WHM Software

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Artificial Intelligence & Machine Learning

Cloudflare Cuts 1,100, Arctic Wolf Axes 250 Amid AI Surge

Michael Novinson • May 11, 2026

Cloudflare cut more than 1,100 workers from its 5,483-person staff, saying the layoffs will align Cloudflare's operations with AI-driven workflows and productivity gains. And Arctic Wolf laid off 250 workers from its estimated staff of 3,402 to free resources for investment in AI initiatives.

Fraud Management & Cybercrime

Hackers Hid Inside Major UK Water Utility for Nearly 2 Years

Chris Riotta • May 11, 2026

A British regulator said a major water sector organization failed to use establish cybersecurity safeguards to secure sensitive data, allowing hackers to use a phishing campaign to gain persistence, steal records and expose more than 630,000 sensitive records.

Artificial Intelligence & Machine Learning

AI Researchers Target SIEM Migration Bottleneck

Rashmi Ramesh • May 11, 2026

Researchers developed an AI framework that converts threat detection rules between major SIEM platforms including Splunk, Microsoft Sentinel and QRadar. The system uses LLMs and automated validation steps to preserve detection logic during migrations that often require months of manual work.

Managed Detection & Response (MDR)

Hackers Don't Sleep. Neither Should Your Defense

Geetha Nandikotkur • May 11, 2026

Attackers now use AI to compress months of reconnaissance into hours, forcing enterprises to rethink cyber defense strategies, says Sunil Sharma of Sophos. He discusses why AI-augmented MDR, faster response times and human-led threat hunting are becoming essential for cyber resilience.

Governance & Risk Management

AI Security Hinges on Context-Aware Decisions

Rahul Neel Mani • May 11, 2026

Anomaly detection is only the first step, says Sujatha S Iyer, head of AI security at ManageEngine. She explains why security decisions are only as strong as the context behind them and why most enterprises haven't yet learned to harness it.

Healthcare

Why Hospitals Must Rethink Cyber Resilience

Marianne Kolbasuk McGee • May 11, 2026

In the face of relentless cyberattacks that threaten patient safety, hospitals must strengthen their resilience, with clinical continuity, secure backups and coordinated recovery emerging as critical strategies, said John Riggi of the American Hospital Association and Josh Howell of Rubrik.

Healthcare

Missouri Alleges Conduent is Stonewalling State on Hack

Marianne Kolbasuk McGee • May 8, 2026

Missouri regulators are widening their investigation into the 204 hacking incident at Conduent Business Services, alleging that the company has stonewalled the state's attempts to obtain information about the data breach, which is estimated to affect more than 25 million people nationwide.

Critical Infrastructure Security

Water System Hack Shows Potential, And Limits, of AI Attacks

Shaun Waterman • May 8, 2026

A hacker used Claude and Chat GPT in a cyberattack against a municipal water and sewage utility's operational technology systems in Mexico in January, according to forensic analysis by OT security firm Dragos. The tools "leveraged known techniques and existing vulnerability knowledge."

Agentic AI

How Goldman Sachs, JPMorgan, AIG Are Actually Deploying AI

Jennifer Lawinski • May 8, 2026

Goldman Sachs, JPMorgan Chase and AIG are moving AI into core business operations. Leaders from all three firms share deployment strategies, lessons learned and how they think about governance and ROI in a fast-moving environment.

Election Security

US Senator Presses CISA on Election Security Rollbacks

Chris Riotta • May 8, 2026

A top U.S, Senate Democrat decried shrinking federal support for election security ahead of the November midterms, warning that cuts to the Cybersecurity and Infrastructure Security Agency could leave states without cyber defense or threat intelligence capabilities

Artificial Intelligence & Machine Learning

How AI, Global Tensions Strain Secure Data Sharing

Chris Riotta • May 8, 2026

AI adoption and geopolitical instability are forcing governments to modernize cross-domain architectures as manual approvals, delayed transfers and insecure workflows create growing risks for classified data sharing, says Everfox CTO Petko Stoyanov.

Artificial Intelligence & Machine Learning

ISMG Editors: The Battle Over Access to Frontier AI Models

Anna Delaney • May 8, 2026

In this week's panel, four ISMG editors discussed the battle over who gets to access powerful AI cybersecurity models, policy issues unfolding in Washington over AI-driven cyber defenses, and how the FDA is beginning to test AI-supported real-time clinical trials to speed up drug development.