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UnitedHealth almost doubles victim numbers from massive Change Healthcare data breach

Malwarebytes

UnitedHealth says it now estimates that the data breach on its subsidiary Change Healthcare affected 190 million people, nearly doubling its previous estimate from October. In October, this was largely confirmed when Change Healthcare reported a number of 100,000,000 affected individuals. Watch out for fake vendors.

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100 million US citizens officially impacted by Change Healthcare data breach

Malwarebytes

In April, we reported that a “substantial proportion” of Americans may have had their health and personal data stolen in the Change Healthcare breach. That was based on a report provided by the UnitedHealth Group after the February cyberattack on its subsidiary Change Healthcare. 2FA that relies on a FIDO2 device can’t be phished.

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ClickFix: How to Infect Your PC in Three Easy Steps

Krebs on Security

In November 2024, KrebsOnSecurity reported that hundreds of hotels that use booking.com had been subject to targeted phishing attacks. From there, they sent out phishing messages asking for financial information from people who’d just booked travel through the company’s app. Source: Sekoia.

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Phishing evolves beyond email to become latest Android app threat

Malwarebytes

There are plenty of phish in the sea, and the latest ones have little interest in your email inbox. In 2024, Malwarebytes detected more than 22,800 phishing apps on Android, according to the recent 2025 State of Malware report. These Android phishing apps may sound high-tech, but they are not.

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5 Key Findings From the 2023 FBI Internet Crime Report

The true figure is likely to be even higher, though, as many identity theft and phishing attacks go unreported. Ransomware attackers can potentially paralyze not just private sector organizations but also healthcare facilities, schools, and entire police departments.

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LW ROUNDTABLE — How 2024’s cyber threats will transform the security landscape in 2025

The Last Watchdog

Part two of a four-part series The explosion of AI-driven phishing, insider threats, and business logic abuse has forced a shift toward more proactive, AI-enhanced defenses. Legacy IAM systems cant keep up as AI-powered phishing and deepfakes grow more sophisticated. The drivers are intensifying.

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Interlock Ransomware Targets Healthcare in Stealth Attacks, Say U.S. Cyber Agencies

eSecurity Planet

agencies have issued a joint cybersecurity alert warning about the escalating threat posed by the Interlock ransomware operation, which has increasingly targeted businesses, healthcare providers, and critical infrastructure entities across North America and Europe. Still, healthcare organizations have been frequent victims.