In-depth coverage of data breach causes, consequences, and prevention tactics. These posts examine real-world breach incidents, regulatory requirements for breach notification, steps to contain and recover from breaches, and proactive measures organizations can take to reduce exposure.
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In 2022, a former Amazon engineer named Paige Thompson was convicted for the Capital One breach that exposed over 100 million customer records. She wasn't an outside hacker who cracked through a firewall. She was an insider — someone with knowledge of the cloud infrastructure who exploited a misconfigured
In February 2024, Change Healthcare — one of the largest health payment processors in the U.S. — was hit by a ransomware attack that disrupted claims processing for thousands of hospitals, pharmacies, and clinics nationwide. UnitedHealth Group, its parent company, later confirmed the breach affected roughly 100 million individuals. The company
In 2023, a single MOVEit vulnerability gave threat actors access to data from over 2,500 organizations — and financial institutions were among the hardest hit. Banks, credit unions, wealth management firms, and insurance companies collectively reported hundreds of millions of compromised records. If you work in finance, you already know
We're barely halfway through 2026, and the breach disclosures are already stacking up at a pace that should alarm every executive, IT director, and business owner reading this. If you're searching for data breach examples 2026, you're probably trying to figure out what'
A Single Click Cost One Hospital Chain $100 Million In 2020, Universal Health Services — a Fortune 500 hospital operator — got hit by the Ryuk ransomware strain. The result: 400 facilities knocked offline, staff reverting to pen and paper, and an estimated $67 million in direct costs plus ongoing damages that
In February 2024, Change Healthcare suffered a ransomware attack that exposed the protected health information of roughly 100 million Americans. The fallout wasn't just technical — it was a regulatory nightmare. State attorneys general demanded answers. Congressional hearings followed. And organizations downstream from the breach scrambled to figure out
A Single Click Cost One Company $188 Million In 2020, Marriott disclosed its second major breach in two years — this time exposing 5.2 million guest records. The root cause? Compromised employee credentials at a franchise property. Two employees' login details were used to access data for weeks before
In November 2023, the international law firm Allen & Overy confirmed it was hit by a LockBit ransomware attack that disrupted internal systems and exposed sensitive data. They weren't alone. The American Bar Association disclosed a data breach that same year affecting 1.4 million members. If you
In 2023, MGM Resorts lost an estimated $100 million after a social engineering attack that started with a single phone call to their help desk. The threat actor impersonated an employee, gained access to internal systems, and deployed ransomware across the enterprise. The entire operation took roughly 10 minutes to
The Breach That Didn't Have to Cost $350 Million When Equifax disclosed its 2017 breach affecting 147 million people, the eventual settlement topped $700 million. But here's what most people forget: the vulnerability that attackers exploited had a patch available months before the breach. Equifax didn&
