Latest cybersecurity reporting from selected sources.

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.

Meta has revealed that 20,225 Instagram users had their accounts hijacked in a recent incident where attackers used Meta's AI-powered support system to reset passwords. [...]

Back-Office Servicer's Breach Estimate Has More Than Doubled Since FebruaryThe victim tally in back-office services firm Conduent Business Services' 2024 hack has more than doubled to over 62.2 million individuals, from an earlier estimate of "25 million plus." The incident is now on track to be at least the third-largest health data breach ever reported to regulators.

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.

A Taiwanese student experimenting with software-defined radio technology shut down three bullet trains for nearly an hour, leading to an anti-terrorism response.

State Insurance Officials Seeking Details About Service Firm's Mega Data BreachMissouri regulators are widening their investigation into the 204 hacking incident at Conduent Business Services, alleging that the company has stonewalled the state's attempts to obtain information about the data breach, which is estimated to affect more than 25 million people nationwide.

The Iranian state-sponsored hacking group known as MuddyWater (aka Mango Sandstorm, Seedworm, and Static Kitten) has been attributed to a ransomware attack in what has been described as a "false flag" operation

Instructure, the company behind the widely used Canvas learning platform, has disclosed a security incident after a social engineering attack allowed hackers to access data in its Salesforce instance. [...]

Cybercrime Gang ShinyHunters Claimed to Steal 9M RecordsMedtronic has told federal authorities that cybercriminals hacked its corporate IT systems, but said the incident did not affect the medical device makers' products, manufacturing or distribution operations. Cybercrime gang ShinyHunters reportedly claimed responsibility for the hack.

You scroll past one incident and see another that feels familiar, like it should have been fixed years ago, but it still works with small changes. Same bugs. Same mistakes

Web infrastructure provider Vercel has disclosed a security breach that allows bad actors to gain unauthorized access to "certain" internal Vercel systems

Stryker Has Said It Doesn't Carry Cyber insuranceStryker notified regulators that its March cyberattack will impact the medtech maker's first quarter financial results. The company also does not appear to have a cyber insurance policy in place to help cover costs associated with the disruptive incident claimed by Iranian hackers.

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.

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.

Incidents Are Unrelated, Says NYC Health + HospitalsHackers had access to New York City's municipal healthcare system for nearly three months before being detected, stealing data of an undisclosed number of patients. The incident is the second hacking-related data breach within weeks involving a third-party firm hired by NYC Health + Hospitals.

Navia Benefit Solutions Says Potential Data Theft Took Place Over 3-Week PeriodA Washington-state based employee benefits administrator is notifying nearly 2.7 million individuals that their information, including health plan and personal details such as Social Security numbers, was potentially stolen in a hacking incident discovered in January.

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.

Google Unmasks, Disrupts Group Using Sheets for Command-and-Control PurposesLikely Chinese nation-state hackers used online spreadsheets as infrastructure for hacking campaigns that affected at least 53 telecom operators across 42 countries, Google disclosed Wednesday. Incident responders discovered a backdoor being remotely controlled through Google Sheets.