Practical advice on preventing malware infections across personal and organizational devices. Topics include antivirus best practices, safe browsing habits, email attachment handling, software patching, network segmentation, and layered defense strategies that stop malware before it executes.
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A Parking Lot Full of Malware In 2016, researchers at the University of Illinois dropped 297 USB drives across a campus. Nearly 48% were picked up and plugged into a computer. Some were plugged in within six minutes of being dropped. That study still haunts me because the fundamental behavior
Colonial Pipeline Was Just the Beginning 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 ransom. Fuel shortages rippled across the Southeast for days. That attack used just one of the many types
In July 2021, the REvil ransomware gang exploited a vulnerability in Kaseya's VSA software and dropped a trojan payload onto the systems of roughly 1,500 businesses worldwide. The attack didn't arrive as an obvious virus. It masqueraded as a legitimate software update — the textbook definition
In March 2021, security researchers discovered that the Agent Tesla keylogger had become one of the most prevalent malware families in the wild, appearing in phishing campaigns targeting organizations across every sector. This wasn't some exotic zero-day. It was a commodity keylogger attack tool that anyone could buy
A Single Click Cost One Hospital Chain $100 Million In 2024, Change Healthcare was hit by the ALPHV/BlackCat ransomware group. The attack disrupted insurance claims processing for thousands of healthcare providers across the United States. UnitedHealth Group eventually disclosed costs exceeding $870 million related to the incident. The entry
In 2023, a single keylogger embedded in a phishing email gave threat actors access to credentials at over 2,000 organizations worldwide as part of the Snake Keylogger campaign. The malware silently recorded every keystroke — passwords, credit card numbers, internal messages — and exfiltrated the data before anyone noticed. A keylogger
In 2023, the FBI's Internet Crime Complaint Center received over 880,000 complaints with potential losses exceeding $12.5 billion — and malware was the engine behind a staggering number of those incidents. I've worked incident response cases where a single malware infection spiraled into a multi-million-dollar
In 2023, the FBI dismantled a cybercrime ring that used a commercial keylogger called Snake Keylogger to steal credentials from over 10,000 victims across 50 countries. The malware recorded every keystroke — banking passwords, email logins, private messages — and quietly exfiltrated the data to attacker-controlled servers. The victims had no
