Latest cybersecurity reporting from selected sources.

Also, 23andMe Breach Settlement, GitHub AI Flaw, Ubiquiti Patches Critical BugsThis week, hidden breaches, researchers exposed a GitHub AI agent flaw, an Ubiquiti critical flaw, a ColdFusion flaw, a growing Chinese ORB, U.K. government FortiBleed exposure, 23andMe victims get $46.75 million, 3.8 million affected by Medtronic breach and Cerner's 2025 victim count went up.

Investigators Found Months of Unchecked Database Scraping ActivitySouth Korea's privacy regulator fined Coupang a record 624.7 billion won after concluding that weak authentication controls, insider access abuse, evidence destruction and unauthorized data collection contributed to the exposure of personal information belonging to 33.7 million people.

Also, Taiwan Rail Hack, Massive DDoS Attack and Karakurt Jail SentenceThis week, Microsoft Edge exposed passwords, Taiwan police make arrests in high-speed rail hack and a 2.45 billion-request DDoS attack. A Karakurt negotiator jailed, North Korean IT worker scams led to prison terms and France detained a teen over a government data breach. Another Ivanti zero-day.

Blackbaud's Attorneys Jon Olson and Ron Raether on Legal Risk, Trust and RecoveryIn part three of the Anatomy of a Breach series, attorneys Jon W. Olson and Ron Raether examine what happens in the aftermath of a breach crisis. The experts discuss legal exposure, regulatory scrutiny and how early decisions can shape long-term trust, litigation outcomes and recovery.

Prolific ShinyHunters Extortion Group Made 'Pay or Leak' Threat to VictimHome security giant ADT has suffered a data breach that appears to have exposed personally identifiable information tied to 5.5 million customers. Prolific extortionist group ShinyHunters claimed credit for the attack, saying it stole Salesforce data after socially engineering an ADT employee.

Also, Eurail Breach, ChipSoft Hospital Disruptions, W3LL Phishing TakedownThis week, a "Raccoon"-linked actor hit help desks, Eurail exposed 308K users, Fortinet patched critical flaws, Pushpaganda scams, major data leaks hit healthcare and China, ransomware and phishing ops surged, and multiple breaches impacted firms and hospitals.

AI Dependency Attack Reportedly Exposes Data and Source CodeA LiteLLM supply-chain compromise enabled attackers to harvest credentials and access internal environments at scale at Mercor. The firm was the first to confirm a LiteLLM breach, and researchers are warning about growing AI system exposure and limited visibility.

Cybersecurity Startup Exposed Lilli Using a Flaw as Old as the WebSecurity startup CodeWall disclosed this week that its autonomous AI agent breached McKinsey's internal AI platform Lilli in two hours on Feb. 28, accessing tens of millions of messages and hundreds of thousands of files through a basic, years-old database flaw.

Lawsuit Claims SonicWall Cloud Backup Flaw Led to Ransomware Attack Against MarquisMarquis Software Solutions has sued SonicWall alleging a cloud backup data breach exposed firewall configuration files, including credentials and multifactor authentication scratch codes. The firm says the breach enabled an August 2025 ransomware attack and triggered dozens of class action lawsuits.

Fintech Giant Says Personal Data Exposed for About 100 Business Users of Loan AppFinancial services firm PayPal said it discovered a data breach that lasted for six months, exposed some business customers' personal information and led to fraudulent charges. The company said about 100 customers were affected, and that it has fully refunded them for fraudulent charges.

Also, SmarterMail Flaw, Nike Breach Probe, Empire Market Co-Creator Pleads GuiltyThis week, researchers exposed an Android RAT abusing Hugging Face. Attackers exploited a SmarterMail flaw. Automakers raised cyber spending. CISA flagged a VMware bug. Microsoft patched Office. An Empire Market co-creator pleaded guilty. Nike probed a breach.

Mapping Platform Exposed Addresses and Medical Assistance PlansThe Illinois Department of Human Services is notifying more than 700,000 individuals of a breach involving "incorrect privacy settings" left in place for several year that exposed online data pertaining to Medicare, Medicaid and rehabilitation services recipients.

Also: Unleash Protocol Hack, LastPass Breach Linked to Crypto TheftsThis week, an alleged fraud kingpin deported to China, Bitfinex hacker gained early release, Unleash Protocol's $3.9M hack, TRM tied crypto thefts to the LastPass breach, Trust Wallet's link to the Sha1-Hulud attack, Flow's NFT loan fallout, Ledger's data exposure and Kontigo reimbursements.

Critics of South Korea's Coupang Dismiss Offer as Marketing More Than CompensationAfter suffering a data breach that exposed personal data for two-thirds of South Korea' population, online retailer Coupang promised to distribute $1.2 billion in vouchers to "restore customer trust." But critics have accused the move of being more about marketing than true compensation.

Also: SudamericaData Leak, RaccoonO365 Arrest and Nefilim Conspirator Pleads GuiltyThis week: Spotify metadata scraped, Nissan disclosed third-party breach, millions of Argentines exposed to data leak, African police arrested hundreds in a cybercrime sweep, Nigeria nabbed a phishing operator, the U.S. DOJ charged ATM jackpotting ring and Nefilim ransomware affiliate pleaded guilty.

National Accident Health Says Breach Exposed Medical Info of 181,000 PeopleA Maine-based third-party administrator that handles healthcare claims involving day care centers, youth sports and NCAA athlete accidents is notifying more than 181,000 individuals that their medical information and personal identifiers may have been accessed or stolen in a hacking incident.

Password Manager Must Pay 1.2M PoundsThe British data regulator imposed a fine of 1.2 million pounds against password manager LastPass over a 2022 data breach that exposed the data of millions of its customers. Unidentified hackers stole backup data from LastPass's Amazon Web Services S3 bucket.

Chinese Developer Formerly Employed by Company Suspected of Data TheftSouth Korea's biggest online retailer, Coupang, said a five-month breach exposed personal data pertaining to 34 million customers, and only came to light after it received an extortion demand. Police said a former developer at the company, a Chinese national who fled the country, is a suspect.

ChatGPT Maker Probes Third-Party Data Breach; OpenAI API Users' Information ExposedOpenAI has temporarily ceased use of Mixpanel after the analytics firm disclosed a breach affecting profile data of the artificial intelligence giant's API platform users. The company is notifying impacted organizations and watching for signs of data misuse.

JP Morgan Chase, Citi and Morgan Stanley Among Banking Customers ImpactedMajor U.S. banks are assessing their exposure to a cybersecurity incident at real estate financial technology company SitusAMC, which disclosed Saturday that a breach may have affected client data. The New York firm uncovered the incident on Nov. 12.