---
title: The Largest Healthcare Data Breach in U.S. History
description: How safe is your company's email?  Email security is an often ignored vulnerability for small businesses.
---

[Resources | Ferrum Technology Services ](https://ferrumit.com/resources)

# [The Largest Healthcare Data Breach in U.S. History](https://ferrumit.com/resources/the-largest-healthcare-data-breach-in-u.s.-history)

 Written by [Ferrum Technology Services LLC](https://ferrumit.com/resources/author/ferrum-technology-services-llc) | Jul 10, 2025 8:15:48 PM

In February 2024, the healthcare industry faced a wake-up call that continues to echo through every hospital, clinic, and billing office in the country.

**Change Healthcare**, founded in **2005** and later merged with **Optum (a subsidiary of UnitedHealth Group) in 2022**, has become one of the largest healthcare technology companies in the U.S. It plays a critical role in the ecosystem—processing claims, managing revenue cycles, and enabling pharmacy transactions for **thousands of providers and payers nationwide**.

That made it an ideal target.

 

##  The Breach

In early 2024, the company was hit by a ransomware attack launched by the cybercriminal group **BlackCat/ALPHV**. The breach compromised over **190 million patient records**, making it the **largest healthcare data breach in U.S. history**.

But it wasn’t just about stolen data.

The attack **crippled pharmacy transactions, paused billing systems, and delayed insurance claims** for weeks. It effectively disrupted the flow of care across the U.S. healthcare system. Change Healthcare reportedly paid a **$22 million ransom** in an attempt to regain operational control.

## Who is BlackCat?

**BlackCat**, also known as **ALPHV**, is a ransomware-as-a-service (RaaS) group known for targeting high-value sectors like healthcare, finance, and government. Following the Change Healthcare breach, a second group called **RansomHub** claimed to possess the stolen data and attempted further extortion.

## The Real Cost of Insecurity

This wasn’t just a breach—it was a systemic breakdown. When healthcare systems go offline, it’s not just about lost revenue. It’s about **missed prescriptions, delayed treatments, and broken trust**.

It’s a harsh reminder:

> “Cybersecurity is patient safety."

## What You Can Do

If you’re in healthcare—directly or indirectly—this is your signal to act. At Ferrum, we help organizations:

- Stay **HIPAA compliant**
- Identify and close cybersecurity gaps
- Strengthen ransomware response plans
- Protect critical patient data

[View full post](https://ferrumit.com/resources/the-largest-healthcare-data-breach-in-u.s.-history)

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