Latest cybersecurity reporting from selected sources.

LegacyHive Is a Local Privilege Escalation BugThe vulnerability hunter in a feud with Microsoft released yet another Windows zero-day Tuesday as promised, though the touted "bone-shattering" disclosure was stripped down to prevent public exploitation. LegacyHive, exploits a profile-loading race condition to access another user's registry hive.

Also, France Probes Tchap Breach, M&S Cancels Bonuses, June Patch TuesdayThis week, CISA tightened patching rules, hackers provoked AI scanners. An accused Russian intel hacker appeared in court. Microsoft warned of AI-themed attacks. M&S canceled bonuses. France probed a Tchap breach. NHS trusts disclosed stolen data and a Telegram campaign targeted Russian troops.

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, Telus Breach, Microsoft Hotpatching, Interpol Malicious IP TakedownThis week, Russian hacker OpSec failure, Interpol helped disrupt 45,000 malicious IPs, the FBI is looking for an ATM jackpotting suspect and Telus disclosed a breach. Windows hotpatching, an FTP exploit, a foiled attack on a nuclear research center and China-linked espionage.

Also: Fortinet Flaws, Aisuru Botnet and Dutch Police Seize Bulletproof Host ServersThis week, the root cause of the Cloudflare outage, active exploitation of Fortinet flaws, Logitech disclosed a data breach, Microsoft headed off a record-breaking botnet attack, Dutch police seized bulletproof hosting servers and Princeton University disclosed a data breach after a phishing attack.

Company Publishes Information on Double Key Encryption Under Regulatory PressureFollowing a legal intervention made by the German federal cybersecurity agency, Microsoft has disclosed additional information on encryption measures it adopted to secure its customer data. A new white paper details how the company is deploying double key encryption.

APT28 Used Microsoft Outlook Zero-Day, Governments SaidThe German and Czech governments on Friday disclosed that Russian military intelligence hackers targeted political parties and critical infrastructure as part of an espionage campaign that began last year. "The EU will not tolerate such malicious behavior," the European Union said in a statement.

Russian Foreign Intelligence Service Hack Gets Worse for Computing GiantA Russian state hack against Microsoft was more serious than initially supposed, Microsoft acknowledged in a Friday disclosure to federal regulators. Microsoft said a Moscow threat actor obtained access to "source code repositories and internal systems."

Hackers Used LLMs to Perform Tasks That Non-AI Tools Can PerformNation-state hackers including Russian military intelligence and hackers backed by China have used OpenAI large language models for research and to craft phishing emails, the artificial intelligence company disclosed Tuesday in conjunction with major financial backer Microsoft.

Computing Giant Says Hackers Did Not Access Customer Data or Production SystemsRussian state hackers obtained access to the inboxes of senior Microsoft executives for at least six weeks, the computing giant disclosed late Friday afternoon. "There is no evidence that the threat actor had any access to customer environments, production systems, source code, or AI systems."

Computing Giant Says Hackers Did Not Access Customer Data or Production SystemsRussian state hackers obtained access to the inboxes of senior Microsoft executives for at least six weeks, the computing giant disclosed late Friday afternoon. "There is no evidence that the threat actor had any access to customer environments, production systems, source code, or AI systems."