Latest cybersecurity reporting from selected sources.

Novo Nordisk Breach Involved 'Copying' of Patient, Healthcare Provider InfoA hack on Danish pharmaceutical manufacturer Novo Nordisk has compromised some patients' clinical trial information, the maker of popular weight loss and diabetes treatment drugs including Wegovy and Ozempic said. The company is working to bring affected IT systems back online.

Attackers Attempted to Reroute Hospital Medicaid ReimbursementsA hack on a Connecticut Medicaid web portal involving compromised credentials of a healthcare provider has affected the payment account and other information for about 22,500 patients. The data theft is the latest breach involving a healthcare related web portal hack. Why does this keep happening?

Incident Involved an Unnamed Third-Party VendorNew York City's municipal healthcare system is notifying nearly 2 million patients of a hacking incident discovered earlier this year involving a third-party vendor. The breach compromised a long list of information, including biometric data such as fingerprints.

Hijacking DNS Settings Helps Russian Hackers Decrypt TLS Traffic, Microsoft WarnsHackers tied to Russia's GRU military intelligence agency are compromising SOHO routers to hijack their DNS settings and spy on the cloud activities of high-value government, IT, telecommunications and energy organizations, Microsoft warns.

Compromise Affects Healthcare Clients of Co.'s Revenue Cycle Management ServicesBilling services vendor Trizetto Provider Solutions is notifying 3.4 million individuals of a hacking incident discovered in October 2025 that investigators have now determined started nearly a year earlier, when threat actors accessed the company's healthcare clients' insurance related data.

Data Theft Incidents Are Among the Latest Hacks Against Specialty Medical ProvidersTwo specialty healthcare providers - a Florida-based firm that provides hospice services in several states and a Pennsylvania-based eye care practice - are notifying nearly 520,000 people that their sensitive health information was compromised in separate hacking incidents.

Breach Affecting 104,000 Underscores Health Data Risks for Non-Healthcare FirmsAn Ohio hand tool manufacturer that sells its products through franchises is notifying nearly 104,000 people of a breach potentially compromising their medical data. The incident is a cautionary tale for non-healthcare sector entities about the risks they face involving health information.

Orthopedic Group, Medical Imaging Centers, Home Healthcare Provider Report BreachesSpecialty healthcare providers know what they're about when it comes to an irregular heartbeat or a wheezing lung. Cybersecurity, not so much. Hacks on specialty medical entities easily result in tens of thousands, if not hundreds of thousands, or even millions, of patient records being compromised.

Senate HELP Committee Leaders Ask Insurer: What Went Wrong in the Cyberattack?A U.S. Senate committee is demanding details from insurance giant Aflac about the company's recent cyberattack that compromised the personal and health information of a yet undisclosed number of Americans. Senators last year gave the same scrutiny to the Change Healthcare mega-breach.

Firm Admits Paying Ransom in Exchange of Hacker's Promise to Delete Stolen InfoTwo Florida-based law firms with offices in other states are notifying 282,100 people whose healthcare and other information was potentially compromised in separate data theft incidents. One of the firms admitted to paying a ransom to prevent its data from being leaked on the dark web.

Union Health System Among Many Cerner Legacy Data Clients Affected by BreachAn Indiana health system is among the first healthcare organizations notifying regulators and thousands of people affected by the Oracle hack in January. Attackers compromised legacy patient data hosted by Cerner servers that were set to migrate to Oracle's cloud environment.

Incident Spotted in March 2024 Is Yet Another Attack Against Medical Billing FirmsA Nebraska-based firm that provides revenue cycle management and billing services to healthcare firms is notifying tens of thousands of people and an undisclosed number of companies that their personal, health and financial information was compromised in a March 2024 hack.

Ransomware Attack Taught Lessons on Health Sector Resiliency, Vendor RedundancyIt's been one year since hackers attacked IT services provider Change Healthcare, quickly shutting down critical processes for thousands healthcare entities, triggering a data breach affecting 190 million people. So what top lessons are emerging from that massive disruption and data compromise?

Ransomware Group Embargo Claims to Have Published 1.15TB of Hospital's Stolen DataA rural Georgia hospital and its nursing home are among several other regional healthcare entities notifying tens of thousands of patients that their information was compromised in recent hacks. Ransomware gang Embargo claims to have published 1.15 terabytes of stolen data in one of those incidents.

Attacks Hit Hospitals, Clinics in California, Alabama and ColoradoThree healthcare entities - including a California hospital and outpatient care provider, an Alabama cardiology practice, and a Colorado community health system, are notifying a total of more than 1.2 million individuals that their sensitive information was compromised in 2024 hacks.

Experts Explain Complexity of Company's Massive Data Breach Analysis EndeavorUnitedHealth Group says its previously eye-popping estimate of 100 million people affected by last year's attack on its Change Healthcare unit nearly doubled in recent months to a staggering 190 million victims. Why did it take so long for the company to figure out the extent of the compromise?

RansomHub Theft Hit Patients of 2 Dozen HCF Facilities and Home Healthcare UnitA chain of more than two dozen skilled nursing and rehabilitation facilities is notifying tens of thousands of patients whose information was compromised in a hacking incident last fall. Russian-speaking cybercriminal gang RansomHub claims to have published 250 gbytes of data stolen in the heist.

Chinese Botnet Targets US Critical Infrastructure and TaiwanA Chinese state-sponsored botnet called Raptor Train has infected more than 260,000 IoT and office network devices to target critical infrastructure globally. The hackers used zero-days and known vulnerabilities to compromise more than 20 different types of devices to expand their botnet.

The Company Will Start Notifying Individuals Affected by the Breach in Late JulyChange Healthcare says it has begun to notify customers whose data was compromised in the February ransomware attack that affected scores of healthcare providers, health insurance plans and other organizations. The company will begin to notify affected individuals in late July.

Also: Critical Infrastructure Security and Fortinet's Latest AcquisitionIn the latest weekly update, ISMG editors discussed critical infrastructure security challenges, a report on the 2022 Medibank breach compromising personal data for 10 million people, and Fortinet's acquisition to integrate Lacework's cloud-native security into its Security Fabric and SASE platform.