Latest cybersecurity reporting from selected sources.

iRhythm disclosed a cyberattack via third-party apps where patient and proprietary data was stolen, followed by a ransom demand. iRhythm Technologies is a U.S.-based digital healthcare company specializing in remote cardiac monitoring and arrhythmia detection. Its best-known product is the Zio, a wearable patch that continuously records a patient’s heart rhythm for up to several […]

Digital healthcare company iRhythm Holdings has disclosed a data breach after hackers stole patients' personal and health information stored on third-party-hosted business applications. [...]

Also, Kali365 Bypasses MFA, Silent Ransom Group Makes Office CallsThis week, active duty troops tracked, Kali365 bypassed MFA, Australian lawmakers phished on WhatsApp, Silent Ransom escalated IT scams, Lithuania and German hospitals disclosed breaches, pro-Russian infrastructure providers arrested, CISA warned of active LiteSpeed exploitation.

The Oncology Institute disclosed a data breach tied to a third-party vendor, potentially exposing patient information after a 2025 cyberattack. The Oncology Institute has confirmed that patient information was impacted in a cybersecurity incident involving a third-party software provider. The healthcare network first disclosed the security breach in November 2025 while the vendor’s investigation was […]

Medical device giant Medtronic disclosed last week that hackers breached its network and accessed data in "certain corporate IT systems." [...]

Complaints Allege Tempus AI Lacked Consent to Use, Share Data With Pharma Cos.A healthcare artificial intelligence firm that sells genetic information from an acquired database holding the results of millions of screening tests faces multiple putative class action lawsuits in Chicago federal court. Genetic data resists attempts to de-identify it, plaintiffs say.

The Computer Emergencies Response Team of Ukraine (CERT-UA) has disclosed details of a new campaign that has targeted governments and municipal healthcare institutions, mainly clinics and emergency hospitals, to deliver malware capable of stealing sensitive data from Chromium-based web browsers and WhatsApp

TriMed Is Among Several Other Medical Device Firms Recently AttackedA California maker of implantable orthopedic gear is the latest medical device maker in recent weeks to disclose it's been a victim of a cybersecurity incident. The disclosure of the hack on TriMed comes on the heels of an Iranian hacktivist attack on Stryker and a data theft from UFP Technologies.

TriMed Is Among Several Other Medical Device Firms Recently AttackedA California maker of implantable orthopedic gear is the latest medical device maker in recent weeks to disclose it's been a victim of a cybersecurity incident. The disclosure of the hack on TriMed comes on the heels of an Iranian hacktivist attack on Stryker and a data theft from UFP Technologies.

Healthcare IT firm CareCloud has disclosed a data breach incident that exposed sensitive data and caused a network disruption lasting approximately eight hours. [...]

Also, Russian Signal Phishing, Iran-Linked Malware, Breaches in Spain and FranceThis week, Tycoon 2FA, Trio-Tech, messaging app spying and a ransomware broker sentenced. Iran-linked hackers. Mazda disclosed a breach. Oracle patched a flaw. North Korean actors weaponized VS Code, a Spanish port ransomware attack, a French teacher data breach and a healthcare firm victim surge.

American manufacturer of medical devices, UFP Technologies, has disclosed that a cybersecurity incident has compromised its IT systems and data. [...]

Cybersecurity researchers have disclosed details of a new SmartLoader campaign that involves distributing a trojanized version of a Model Context Protocol (MCP) server associated with Oura Health to deliver an information stealer known as StealC

Why Are Third-Party Vendor Breaches So Hard to Figure Out?The victim tally of a 2024 hacking incident at medical services provider Conduent again soared after a new regulatory disclosure by the company, in this case to Texas authorities. The company told Lone Star state officials the breach affected nearly 14.8 million Texans, alone.

Baker University has disclosed a data breach after attackers gained access to its network one year ago and stole the personal, health, and financial information of over 53,000 individuals. [...]

Move Comes After Ruling in Separate Case Discarded HIPAA Reproductive PHI ChangesThe state of Texas has dropped a federal lawsuit filed against the U.S. Department of Health and Human Services that sought to vacate the 25-year-old HIPAA privacy rule, as well as 2024 rule changes under the Biden administration that prohibit the disclosure of reproductive health information.

Largest Breach of 2025 Hits 10.5M People, Multiple Insurers, State AgenciesProposed federal class action litigation and various investigations are piling up against Conduent Business Solutions following its recent public disclosure that an October 2024 hacking incident potentially compromised personal and health information of more than 10.5 million people.

'Success Stories' Social Media Program Impermissibly Disclosed PHI of 150 PatientsA "Success Stories" marketing campaign by a Delaware nursing home that involved posting photos and names of patients on social media resulted in a $182,000 federal fine. Regulators say the company violated HIPAA rules through the unauthorized disclosure of patients' protected health information.

Horizon Healthcare RCM Hints at Paying Ransom in Data Theft IncidentHorizon Healthcare RCM is the latest revenue cycle management software vendor to report a health data breach involving ransomware and data theft. The firm's breach notification statement suggests that the company paid a ransom to prevent the disclosure of its stolen information.

On Friday, American insurance giant Aflac disclosed that its systems were breached in a broader campaign targeting insurance companies across the United States by attackers who may have stolen personal and health information. [...]