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computer security

Foundational principles and practices for protecting computers, devices, and data from unauthorized access, malware, and exploitation. Covers endpoint protection, password management, encryption, software updates, and safe computing habits for everyday users.

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computer security

Computer Security in 2021: What Actually Works Now

The Colonial Pipeline Hack Changed the Conversation On May 7, 2021, a single compromised password shut down the largest fuel pipeline in the United States. Colonial Pipeline paid a $4.4 million ransom in Bitcoin to the DarkSide ransomware group. Gas stations across the Southeast ran dry. Panic buying erupted.

Carl B. Johnson Jun 03, 2021 7 min read
computer security

Computer Security in 2026: What Actually Works Now

The Breach That Changed How I Think About Computer Security In early 2024, Change Healthcare — one of the largest health payment processors in the United States — got hit with a ransomware attack that disrupted pharmacy operations, delayed patient care, and exposed the protected health information of roughly 100 million individuals.

Carl B. Johnson Feb 25, 2019 7 min read