Latest cybersecurity reporting from selected sources.

NightmareEclipse Says Mitigation Can Exhaust Disk Space, Crash AppsMicrosoft's patch for CVE-2026-50656, known as RoguePlanet, has sparked fresh criticism after researcher NightmareEclipse alleged the mitigation can exhaust disk space, crash applications and leak memory, extending a months-long dispute over Microsoft's handling of multiple zero-day disclosures.

Security Researchers Fear Broader Legal Pressure on Bug DisclosuresMicrosoft is pursuing legal action after a researcher publicly released six Windows zero-days and exploit code following a breakdown in coordinated disclosure talks, escalating tensions over vulnerability disclosure, platform moderation and protections for independent security researchers.

Also, Lloyds Data Leak, Dutch Treasury Breach, Citrix Bug Exploit, Pay2Key ActivityThis week, Lloyds data leak hits 450K, Dutch treasury breach, Citrix flaw exploited, Iran-linked ransomware ops, TrueConf zero-day, Russian fraud ring sentenced, Romania targeted, patch gaps persist, and U.S. hospital breach affects 257K.

Also: EU Bans AI Tools, Notepad++ Secures Updater, Apple Patches iOS Zero-DayThis week, Cambodia shuttered 200 scam centers. EU Parliament banned AI tools. Canada Goose disputed a ShinyHunters leak. Notepad++ patched an updater flaw. Apple fixed a decades-old iOS zero-day. BeyondTrust and Dell patched critical flaws under active exploitation.

Also: China-Linked APT Hijack Updates, Condé Nast Data Leaked, La Poste HitThis week, a Clop-linked vendor breach hit Korean Air, a China-linked APT hijacked software updates, a critical zero-day flaw remained unpatched, Condé Nast faced a data leak, La Poste was disrupted and Korean police extradited a malware operation suspect.

Deploy Emergency Patch for Zero-Day Flaw, Hunt for Signs of Intrusion, Warn ExpertsOracle patched a zero-day vulnerability in Oracle E-Business Suite and urged customers to immediately install the fix. The flaw has been exploited since August by the Clop ransomware group, and with exploit code now having leaked, experts expect to see many more attackers join the fray.

Also: Spain Defies Pressure to Eject Huawei, Hackers Leak North Korea Kimsuky DataThis week, Norway said Russian hackers attacked a flood gate, Spain defied pressure to eject Huawei, a cyberattack against the Office of the Pennsylvania Attorney General. Hackers leaked stolen North Korean Kimsuky data, Microsoft patched a Kerberos zero-day and a big Chrome bug bounty.

Also: Infostealer Malware Compromises Mexican Government ComputersThis week, DeepSeek exposed sensitive data, hackers exploited unpatched Zyxel flaws, infostealer malware on Mexican government computers, Smiths Group incident, PowerSchool breach notifications, an Apple zero-day, XWorm RAT backdoor, and Credit Control Corporation settled a lawsuit.

Actively Targeted Zero Day Patched; Warning Issued After Device Configurations LeakFortinet has released patches to fix a zero-day vulnerability being actively exploited by attackers. Separately, researchers are warning customers to review their infrastructure after attackers leaked configuration details - including firewall rules and plaintext VPN passwords - for 15,000 devices.

Hackers Could Cause Tanks to Overfill and Disable Leak DetectionIndustrial control systems made by different manufacturers for monitoring fuel storage tanks including those used in everyday gas stations contain critical zero-days that could convert them into targets for cyberattacks that cause physical damage.

Also: Ivanti Exploitation Continues; Apple Fixes First Zero-Day of 2024This week, U.S. short seller lender EquiLend Holdings was hacked, the Ivanti exploitation continued, Apple addressed the first zero-day of 2024, Ukraine said hackers had hit a Russian research center, Kasseika ransomware evolved, North Korean hackers were active, and Trello experienced a data leak.