Computer Security US Blog

Computer Security News and Insights

Cross-Site Scripting

Cross-Site Scripting Explained: What Attackers See

A Single Input Field Took Down British Airways In 2018, British Airways disclosed a breach that compromised the personal and financial data of approximately 380,000 customers. The attack vector? A modified script injected into their website's payment page. The UK's Information Commissioner's Office

Carl B. Johnson Jun 08, 2026 5 min read
BYOD Security Risks

BYOD Security Risks: What Your Policy Is Missing

In 2023, a single employee's personal phone led to one of the most damaging casino breaches in history. Threat actors used social engineering to compromise MGM Resorts, and the attack vector started with a device the company didn't fully control. The resulting disruption cost MGM over

Carl B. Johnson Jun 08, 2026 5 min read
Spear Phishing

What Is Spear Phishing? The Targeted Attack Behind Major Breaches

A Single Email Cost This Company $100 Million In 2015, Ubiquiti Networks disclosed that threat actors used carefully crafted emails impersonating company executives to trick finance employees into wiring $46.7 million to overseas accounts. The attackers didn't exploit a software vulnerability. They exploited people — with spear phishing.

Carl B. Johnson Jun 07, 2026 5 min read
Spear Phishing

Spear Phishing: Why Targeted Attacks Beat Your Defenses

The Email That Cost One Company $100 Million In 2024, the FBI's Internet Crime Complaint Center reported that business email compromise — a form of spear phishing — accounted for over $2.9 billion in adjusted losses. That wasn't a typo. Billions. And those are just the cases

Carl B. Johnson Jun 07, 2026 5 min read
AI Phishing Attacks

FBI Warns Gmail Users of AI-Driven Phishing Attacks

In late 2024, the FBI issued a stark warning: AI-driven phishing attacks targeting Gmail users had reached a level of sophistication that made them nearly indistinguishable from legitimate communications. We're not talking about the laughably bad "Nigerian prince" emails anymore. These are pixel-perfect replicas of Google

Carl B. Johnson Jun 06, 2026 5 min read
Cybersecurity Definition

Cybersecurity Definition: What It Really Means in 2026

In 2024, the average cost of a data breach hit $4.88 million — the highest figure IBM had ever recorded. That number didn't climb because organizations lacked firewalls. It climbed because most people fundamentally misunderstand what cybersecurity actually is. If you've searched for a cybersecurity definition,

Carl B. Johnson Jun 05, 2026 5 min read
Stolen Credentials

Stolen Credentials Dark Web: How Your Logins Get Sold

In 2024, the FBI's Internet Crime Complaint Center reported losses exceeding $16 billion from cybercrime — and compromised credentials were the gateway for a staggering number of those incidents. Right now, billions of username-and-password combinations sit on dark web marketplaces, priced anywhere from $1 to $500 depending on what

Carl B. Johnson Jun 05, 2026 5 min read
Ransomware

How Ransomware Spreads: 7 Paths Into Your Network

In February 2024, Change Healthcare — the largest medical claims processor in the United States — was hit by the ALPHV/BlackCat ransomware group. The attack disrupted billing systems at hospitals and pharmacies nationwide for weeks. The entry point? Stolen credentials used on a remote access portal that lacked multi-factor authentication. One

Carl B. Johnson Jun 05, 2026 5 min read
Cybersecurity Definition

Cybersecurity Definition: What It Really Means in 2026

In 2023, MGM Resorts lost roughly $100 million after a social engineering phone call — a single phone call — gave threat actors the foothold they needed to deploy ransomware across the company's entire infrastructure. If you Google "cybersecurity definition," you'll get a tidy textbook answer

Carl B. Johnson Jun 04, 2026 5 min read