Computer Security US Blog

Computer Security News and Insights

Fake Mailer

Fake Mailer Attacks: How Threat Actors Spoof Email

In March 2024, the FBI's Internet Crime Complaint Center reported that business email compromise — much of it powered by spoofed sender addresses — cost victims over $2.9 billion in a single year. Behind many of those attacks sits a deceptively simple weapon: a fake mailer. These tools let

Carl B. Johnson Mar 10, 2019 7 min read
FBI Gmail

FBI Gmail Warnings: What Every Organization Must Do Now

The FBI Gmail Alert That Should Have Your Full Attention In 2023, the FBI's Internet Crime Complaint Center (IC3) received over 298,000 phishing complaints — and Gmail accounts were among the most targeted. The FBI has repeatedly issued warnings about sophisticated phishing campaigns targeting Gmail users, including AI-generated

Carl B. Johnson Mar 07, 2019 7 min read
Cybersecurity

Cybersecurity in 2026: What Actually Works Now

The Breach That Changed How I Think About Cybersecurity In February 2024, Change Healthcare suffered a ransomware attack that disrupted insurance claims processing for hospitals and pharmacies across the United States. UnitedHealth Group confirmed the breach affected approximately 100 million individuals — making it one of the largest healthcare data breaches

Carl B. Johnson Feb 25, 2019 6 min read
cyber security

Cyber Security in 2026: What Actually Works Now

In March 2024, Change Healthcare suffered a ransomware attack that disrupted insurance claims processing for nearly every hospital and pharmacy in the United States. The root cause? Stolen credentials on a system without multi-factor authentication. One overlooked gap in cyber security brought a $32 billion company to its knees and

Carl B. Johnson Feb 25, 2019 6 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
Security of Cyberspace

Security of Cyberspace: What Actually Works in 2026

In February 2024, Change Healthcare — one of the largest health payment processors in the United States — suffered a ransomware attack that disrupted pharmacy operations, delayed insurance claims, and exposed the protected health information of roughly 100 million people. One set of stolen credentials. No multi-factor authentication on a critical system.

Carl B. Johnson Feb 25, 2019 6 min read
Cybersecurity Tips

Cybersecurity Tips That Actually Stop Breaches in 2026

In 2024, the average cost of a data breach hit $4.88 million globally, according to IBM's Cost of a Data Breach Report. That number didn't come from sophisticated nation-state attacks or exotic zero-days. Most of those breaches started with stolen credentials, a phishing email, or

Carl B. Johnson Feb 25, 2019 6 min read
Security for System Administrators

Security for System Administrators: A 2026 Field Guide

The Breach That Started With a Single Unpatched Server In 2023, the MOVEit Transfer vulnerability (CVE-2023-34362) let the Cl0p ransomware gang compromise thousands of organizations worldwide — including federal agencies and major financial institutions. The root cause wasn't exotic malware or a sophisticated zero-day chain. It was a known

Carl B. Johnson Feb 25, 2019 7 min read
What Is Cybersecurity

What Is Cybersecurity? A Practitioner's Real-World Guide

The Question Everyone Asks After the Breach In 2023, MGM Resorts lost an estimated $100 million after a threat actor called Scattered Spider social-engineered its way past the help desk with a single phone call. The attackers didn't exploit some exotic zero-day vulnerability. They called IT, pretended to

Carl B. Johnson Feb 22, 2019 7 min read
IT Security

IT Security in 2026: What Actually Works Now

In February 2024, Change Healthcare — one of the largest health IT companies in the United States — suffered a ransomware attack that disrupted insurance claims processing for thousands of hospitals and pharmacies nationwide. UnitedHealth Group, its parent company, later disclosed that the breach affected roughly 100 million individuals. The root cause?

Carl B. Johnson Feb 22, 2019 7 min read