Latest cybersecurity reporting from selected sources.

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.

iRhythm: Patient Information and 'Proprietary' Data Breached, Held for RansomCardiac monitoring firm iRhythm Technologies has told the U.S. Securities and Exchange Commission that hackers recently stole proprietary data and patient health information from "certain" third-party-hosted business applications, and demanded a ransom. The company did not disclose whether it paid.

Diagnostics Lab Reported 10.3M Patients Affected by Collection Agency's HackMedical laboratory testing giant Labcorp has agreed to pay $35 million to settle class action litigation stemming from a 2018 hacking incident on now-defunct American Medical Collections Agency. Labcorp reported the vendor breach in 2019 as affecting nearly 10.3 million patients.

Also: Gas Station Monitoring Systems Under Attack, Spanish Teen Doxer ArrestedThis week, more happened than fits here: Microsoft tried to make nice with researchers, gas tank gauges under attack in the United States, fake FIFA websites are everywhere. Russia cried cyberespionage, Spanish police arrested a teenage doxer, a Oracle WebLogic flaw was actively exploited.

Also, YellowKey Bypasses BitLocker, Škoda Breach, Kingdom Market Operator JailedThis week, U.S. lawmakers urged action on AI, a BitLocker exploit. Škoda, Nvidia’s GeForce NOW partner and telehealth firm OpenLoop reported breaches. Patch Tuesday. A dark market operator sentenced and pro-Ukraine and Iranian-linked hacking. Nitrogen ransomware attack on Foxconn.

Also, Medusa Ransomware, Grafana Flaw, German Political Party BreachThis week, German police unmasked a REvil leader, a critical Docker flaw, Medusa ransomware surged, DPRK hackers abused GitHub, Grafana AI bugs enabled data theft, scams hit $20B in the United States, Ivanti exploited and attacks hit Northern Ireland schools and a German political party.

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.

CareCloud: Intruder Accessed Systems for 8 Hours, Still Assessing Extent of BreachElectronic health records vendor CareCloud has notified the U.S. Securities and Exchange Commission of a cyber incident earlier this month that temporarily disrupted the software and accessed one of its EHR environments. The company is assessing whether patient data was accessed or stolen.

Also, More ClickFix Attacks and Teen Booters Arrested in PolandThis week, Russian hackers targeted Signal and WhatsApp users, permit-fee phishing hit U.S. applicants, ClickFix on WordPress sites, Microsoft patched 80 bugs, a 14K-router botnet, Polish teens held over DDoS tools and Finland warned of Russian, Chinese espionage. North Korean IT workers for hire.

Tehran-Linked Handala Hackers Disrupt Medtech Giant Stryker, Claim Verifone BreachAs the United States and Israel continue their war with Iran, Tehran-linked hacking group Handala has entered the fray, claiming credit for wiping systems at medical technology firm Stryker, which confirmed the attack, as well as breaching payment device maker Verifone, which denied being breached.

HIPAA Settlement Small Compared to Many OthersU.S. federal regulators fined a dental practice software vendor with a seemingly lowball financial penalty for a high-stakes 2020 hack affecting 15 million individuals that the company failed to report. Maryland-based MMG Fusion agreed to $10,000.

New HHS Enforcement Program Focuses on Patient Confidentiality, Aligning With HIPAAThe U.S. Department of Health and Human Services has launched a new breach reporting website and guidance materials to support its duties of enforcing compliance mandates that went into effect Monday to better align the confidentiality of substance use disorder records with the HIPAA privacy rule.

Will the Back-Office Services' Firm Incident Shatter US Data Breach Records?The Texas attorney general office has launched an investigation into the Conduent Business Services hacking incident, which affected about 15.5 million Texans, including about 4 million Blue Cross Blue Shield of Texas members. Will the nationwide victim tally shatter data breach records in the U.S.?

Also, Active Exploits Hit SolarWinds, Ivanti as APT28 Targets EU, UkraineThis week, Italy blocked Russian cyberattacks targeting the Olympics. Flaws in SolarWinds, Ivanti and Microsoft Office. Russia's APT28 ramped up attacks in Ukraine, supply chain attacks, regulators probed major breaches and a U.S. judge sentenced the operator of a darkweb drug marketplace.

Also, Active Exploits Hit SolarWinds, Ivanti as APT28 Targets EU, UkraineThis week, Italy blocked Russian cyberattacks targeting the Olympics. Flaws in SolarWinds, Ivanti and Microsoft Office. Russia's APT28 ramped up attacks in Ukraine, supply chain attacks, regulators probed major breaches and a U.S. judge sentenced the operator of a darkweb drug marketplace.

Also: US Sanctions UK-Registered Exchanges Over Iran TiesThis week, Step Finance and CrossCurve hacks, the United States sanctioned U.K.-registered exchanges over Iran ties, forfeiture finalization of funds linked to Helix, Coinbase data breach, 2025's illicit crypto flows and a UK regulator banned Coinbase ads.

ITRC Report: 2025 Breach Notices Lack Critical Details as AI-Based Attacks SurgeThe Identity Theft Resource Center tracked a record 3,322 U.S. data breaches in 2025, more than any previous year. Yet, only 30% of breach notices included actionable details that other defenders need. ITRC's James Lee warns that this lack of transparency puts people and businesses at greater risk.

Identity Theft Resource Center Catalogs 3,322 Known US Incidents in 2025The number of U.S. organizations that reported falling victim to a data breach in 2025 reached an all-time high, while the number of notifications they sent to affected consumers fell sharply, reports the Identity Theft Resource Center's latest annual breach roundup.

Seoul Accuses E-Commerce Giant of 'Self-Investigation,' Impeding Government ProbeSouth Korea's data protection watchdog told e-commerce giant Coupang to stop publishing its "self-investigation" findings into a massive data breach and demanded the interim CEO, a U.S. citizen, return to the country to meet with a police - drawing criticism from U.S. Republican lawmakers.

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.