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How to Prevent Ransomware

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Ransomware Prevention

How to Prevent Ransomware: A Practical 2025 Guide

In February 2024, Change Healthcare — one of the largest health payment processors in the United States — was hit by the ALPHV/BlackCat ransomware group. The attack disrupted pharmacies, hospitals, and insurance claims across the entire country for weeks. UnitedHealth Group, the parent company, eventually disclosed that the breach affected roughly

Carl B. Johnson Aug 11, 2025 6 min read
Ransomware Prevention

How to Prevent Ransomware: A Practical Defense Guide

The $1.1 Billion Year That Changed Everything In 2023, ransomware payments topped $1.1 billion globally, according to Chainalysis research. That's more than double the previous year. If you're reading this wondering how to prevent ransomware, understand this first: threat actors aren't slowing

Carl B. Johnson Feb 09, 2024 7 min read
Ransomware Prevention

How to Prevent Ransomware: A Practical Defense Guide

The Colonial Pipeline Attack Changed Everything In May 2021, a single compromised password shut down the largest fuel pipeline in the United States. Colonial Pipeline paid DarkSide operators $4.4 million in Bitcoin — and even after paying, it took days to restore operations. Fuel shortages hit the East Coast. Panic

Carl B. Johnson Mar 21, 2022 7 min read
Ransomware Prevention

How to Prevent Ransomware: A Practical Defense Guide

The Attack That Cost a Pipeline — and a Country's Fuel Supply In May 2021, Colonial Pipeline shut down 5,500 miles of fuel infrastructure after a ransomware attack crippled its operations. Millions of Americans panic-bought gasoline. The company paid $4.4 million in Bitcoin to the DarkSide threat

Carl B. Johnson Mar 12, 2021 7 min read
Ransomware Prevention

How to Prevent Ransomware: A Practical Defense Guide

The Attack That Shut Down 100 Million Prescriptions In February 2024, a ransomware attack on Change Healthcare paralyzed pharmacy operations across the United States. Hospitals couldn't process claims. Patients couldn't fill prescriptions. UnitedHealth Group ultimately disclosed the breach affected roughly 100 million individuals — the largest healthcare

Carl B. Johnson Nov 30, 2019 7 min read