Latest cybersecurity reporting from selected sources.

Breach Is Among Several Recent Major Incidents Involving Billing Software ProvidersA publicly traded cancer treatment firm notified investors that a yet-undisclosed number of patients' information was compromised in a 2025 cybersecurity incident involving a third-party billing software vendor. The Oncology Institute provides cancer treatment care to nearly 2 million patients.

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.

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.

345 Major HIPAA Breaches Reported to Feds So Far This Year, Affecting 29.9 MillionMidway through 2025, the federal website listing major health data breaches in the U.S. shows a familiar scene: Many hacking incidents including ransomware, dozens of third-party vendor incidents, and millions of individuals affected by compromised personal data.

Customer Credentials Possibly Compromised at EHR Vendor Acquired by Oracle in 2022Oracle is dealing with a hacking incident involving legacy patient data of Cerner electronic health record customers. Oracle, which acquired Cerner in 2022, is reportedly telling clients the hack involved compromised credentials for systems scheduled to migrate to the cloud.

2020 Attack Affected 13,000 Blackbaud Clients, 1.5 Billion of Their 'Constituents'A federal judge has denied class certification in consolidated proposed class action litigation against Blackbaud stemming from the fundraising software vendor's 2020 ransomware attack that affected 13,000 clients and compromised data of about 1.5 million donors, patients and other individuals.

HealthEC Hack Also Compromised More Than a Dozen US Healthcare SystemsA hacking incident at a New Jersey-based vendor of artificial intelligence-enabled population health management services that involved a network server has affected more than a dozen of its healthcare clients across the country and nearly 4.5 million of their patients.

The North Korean Lazarus hacking group repeatedly compromised a software vendor using flaws in vulnerable software despite multiple patches and warnings being made available by the developer. [...]

The North Korea-aligned Lazarus Group has been attributed as behind a new campaign in which an unnamed software vendor was compromised through the exploitation of known security flaws in another high-profile software

Mobile vendor confirms that some source code used with its Galaxy devices was breached.