Latest cybersecurity reporting from selected sources.

CISA Lauded for Fast Response, Transparency and Detailing Security RecommendationsSecure developers' use of public code repositories, monitor them for secrets and if they get exposed, have a well-tested incident response playbook at the ready. The U.S. Cybersecurity and Infrastructure Security Agency has shared these and other lessons learned after suffering a data leak.

Also, Arch Linux Attack, Estonia Quarantines Russian Emails, Joomla FlawThis week, ShinyHunters leaked alleged Madison Square Garden data, a U.S. senator pressed CISA on regional staffing cuts, an Arch Linux supply-chain attack, Mackay Sugar began recovery from a ransomware attack, Novo Nordisk faced dueling breach claims - and more compelling cybersecurity news.

Also: ZachXBT Uncovers DPRK Worker Scam, Hyperbridge Hack, Coinone FineThis week, Operation Atlantic disrupts $45M phishing fraud, ZachXBT uncovers DPRK crypto worker scheme, Hyperbridge exploit, South Korea fines Coinone $3.5M, Kraken faces extortion attempt over insider data leak and American musician loses $420K in fake Ledger app.

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.

New Handala Site Is Also AvailableU.S. federal agents seized four web domains associated with Iranian hacking operations days after a threat actor going by Handala posted screenshots it said came from inside the IT systems of medical device manufacturer Stryker. The registrars used to create them are located in the United States.

Booz Allen Loses Treasury Work in Move Tied to Trump Waste CrackdownThe U.S. Department of Treasury said it canceled all active contracts with Booz Allen Hamilton, citing data protection failures in handling taxpayer information. Treasury cited a criminal case against Charles Littlejohn, a former employee who leaked the tax returns of President Donald Trump.

Also, Venezuela Cyberattack, Endesa Confirms Breach and Telegram IP LeakThis week, a software flaw caused the Verizon outage. U.S. cyberattack in Venezuela. ICE identities published online. BreachForums users leaked. Spanish energy provider Endesa data breach. Telegram privacy risk. A MuddyWater upgrade. Dutch man sentenced for hacking a maritime port. A ServiceNow patch.

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.

Leaked Executive Order Would Strip States of Power to Regulate AI Tech FirmsA leaked draft executive order would empower federal agencies to override state AI laws, threatening federal funds for noncompliance and creating a litigation task force - drawing sharp backlash over executive overreach and potential harm to consumers.

Kazu Demands $200K Ransom, Begins Leaking 1.2M Stolen Patient RecordsKazu, a relative newcomer among cybercrime gangs, is threatening to post 353 gigabytes of data allegedly stolen in recent weeks from Doctor Alliance, a Texas-based company that provides document and billing management technology and services to physician practices. The attack appears to be the gang's first in North America.

Agency Warns Vertikal Systems Vulnerabilities Could Help Hackers Access DataU.S. federal authorities are warning about vulnerabilities in hospital information management systems from Romanian firm Vertikal Systems that could allow hackers to obtain and disclose patient data. The affected systems are used mostly by smaller hospitals and clinics outside the United States.

Also: Clorox Sues IT Vendor Over Password BlunderThis week, XSS forum admin arrested, Clorox sued Cognizant, Lumma Stealer is back, NY regulates water, U.S. maritime cybersecurity rules in effect, new Coyote banking Trojan, a hacker nabbed details of Mexico City auxiliary police, Latin America cyberattacks, and World Leaks stole synthetic data.

Also: Clorox Sues IT Vendor Over Password BlunderThis week, XSS forum admin arrested, Clorox sued Cognizant, Lumma Stealer is back, NY regulates water, U.S. maritime cybersecurity rules in effect, new Coyote banking Trojan, a hacker nabbed details of Mexico City auxiliary police, Latin America cyberattacks, and World Leaks stole synthetic data.

Also: Medicare Data Breach; Gartner Security & Risk Management Summit TakeawaysIn this week's update, ISMG editors discussed Iran-linked hackers claiming to steal emails from Trump's inner circle, how to refine application development in the age of AI, and a U.S. Medicare data breach amplifying concerns over the safety, security and privacy of federal health systems.

Experts Say White House AI Plan May Spur Innovation But Leave School Data at RiskThe White House issued an executive order Wednesday to expand the use of new artificial intelligence tools in U.S. K–12 schools, drawing expert warnings over the lack of cybersecurity safeguards to prevent data leaks or misuse by AI firms for model training.

iSoon CEO, COO and Sales Director Among 10 Indicted for Cyberespionage, Wire FraudA U.S. federal grand jury in Manhattan indicted the senior leadership of a Chinese private sector hacking contractor iSoon for supporting Beijing cyberespionage operations roughly a year after internal documents from the firm leaked online.

Also: Addressing AI Vulnerabilities and Governance ChallengesDeepSeek, an advanced open-source AI model, is under scrutiny for its safety guardrails failing multiple security tests and a data leak that exposed user information and API keys. Sam Curry, CISO at Zscaler, discusses AI security, risk management and upcoming U.S. policy changes.

Also: Interpol Says 'Pig Butchering' Shames Victims, A Data Leak Scandal in MexicoThis week, U.S. asks Israel to extradite an alleged LockBit coder, don't say "pig butchering," and an Apache Struts flaw. A hunt for alleged data thieves in Mexico, Europe probes TikTok and Netfilix fined 4.75 million. A ransomware attack against Texas medical centers and a credit union breach.

Embargo Group Threatens to Leak Nearly 1.5TB of Drug Collaborative's DataRansomware group Embargo is threatening to publish nearly 1.5 terabytes of data allegedly stolen in an attack on American Associated Pharmacies, a collaborative of 2,000 independent pharmacies. The gang is shaking down AAP for the second installment of an alleged agreed-up ransom deal.

Cybercriminal Gang RansomHub Claims It Leaked 700 Gigabytes of Lab's Stolen DataFlorida drug testing medical laboratory American Clinical Solutions told federal regulators that 300,000 individuals are caught up in a hacking incident now that criminal gang RansomHub has published 700 gigabytes worth of data stolen from the lab's network.