Until now, the worst health care data breach occurred in 2015, which compromised 78.8 million people. But the ante has been upped.
The cyberattack in question has hit a new record of 100 million people affected — and just happens to have struck the largest health care company in the world (by revenue), UnitedHealth Group.
The actual incident happened in February 2024, when a ransomware attack caused disruptions at pharmacies all across the country, originally reported by Reuters. The target was Change Healthcare, a subsidiary of UnitedHealth Group that manages finances for medical providers. Cybercriminals reportedly found their way into the Change Healthcare employee system due to a lack of multi-factor authentication on login credentials.
A statement from the U.S. Senate Committee on Finance described the nightmarish results of the hack, which involved prescriptions going unfilled, doctors and hospitals not getting paid, and insurance companies unable to reimburse medical providers. “The Change Healthcare hack is considered by many to be the biggest cybersecurity disruption to health care in American history,” Sen. Ron Wyden, D-Oregon, said in the committee statement.
Approximately a third of all U.S. citizens are somehow connected to the organization, and that includes lots and lots of personal data. We all knew it was bad at the time, as the CEO of Change Healthcare said the stolen files included the personal health data for “a substantial proportion of people in America,” as reported by TechCrunch.
The attack was claimed to have been committed by the BlackCat ransomware gang, which was confirmed by Change Healthcare. A post on the dark web by the Russia-based group later claimed to have stolen the health and patient information of millions of Americans.
But now, the U.S. Department of Health and Human Services has updated the figure of those affected in its data breach portal to reveal just how bad it really is: a terrifying 100 million people. One industry journal even suggested that the round figure of 100 million could change in the future, as reported by DailyMail. Hopefully that means the actual number could be smaller, but it could just as easily go in the opposite direction.
The sheer scale makes the 5.3 million data breach that affected Mexican health care systems reported on just yesterday look negligible by comparison.
Nearly a month after announcing the GPT-6.1 Sol model, OpenAI unveiled GPT-6.1 Terra today. The latest addition to the family focuses on computer use, visual reasoning, coding, and professional work, while costing 50% less through the API than GPT-5.6 Terra.
OpenAI says Terra can handle everything from filling out browser forms and working inside spreadsheets to interpreting technical drawings and editing videos. The company says it can also complete computer-based tasks more than three times faster than GPT-6 Astra and GPT-6.1 Sol.
ASUS has started selling its UGen Intel Arc Pro B70 graphics card in Europe, bringing its take on Intel’s workstation GPU to customers with a hefty €1,799 recommended price. The card is available in Germany and Austria, while ASUS lists it at CHF 1,799 in Switzerland.
Intel first introduced the Arc Pro B70 in March 2026, with its own branded model starting at $949. ASUS’s version arrives several months later with the same core GPU architecture but a different cooling design and a higher power rating. The price also places it well above Intel’s original starting point, although the two prices are not directly comparable because ASUS’s European figure includes VAT.
Anthropic has officially filed to go public, and buried inside its S-1 is a blunt warning about the technology at the center of its business. The maker of Claude AI says advanced AI could cause everything from large-scale cyberattacks and geopolitical instability to catastrophic or even existential risks for humanity.
The warnings take up a surprisingly large part of the filing. Axios notes that more than 90 pages, or roughly a third of the prospectus, focus on risk factors. Many of them warn about what could happen as AI systems become more capable and autonomous.