Computer Security US Blog

Computer Security News and Insights

SQL Injection

SQL Injection Explained: The Attack That Won't Die

In 2023, the MOVEit Transfer vulnerability — a SQL injection flaw — led to the compromise of over 2,600 organizations and exposed data on more than 77 million individuals. One vulnerability. One injection point. Billions in damage. And here's what should keep you up at night: SQL injection has

Carl B. Johnson Jul 14, 2019 7 min read
Cross-Site Scripting

Cross-Site Scripting Explained: What XSS Really Does

In 2018, British Airways disclosed a breach that exposed the personal and financial data of roughly 380,000 customers. The attack vector? A modified JavaScript injected into the airline's payment page — a textbook cross-site scripting exploit. The UK's Information Commissioner's Office initially proposed a

Carl B. Johnson Jul 14, 2019 7 min read
Phishing

How to Spot a Phishing Email Before It Costs You

In May 2021, a single phishing email led to the shutdown of Colonial Pipeline — the largest fuel pipeline in the United States. One compromised credential. One employee who didn't catch the red flags. The result: fuel shortages across the East Coast, a $4.4 million ransom payment, and

Carl B. Johnson Jul 04, 2019 7 min read
Phishing

What Is Phishing? The Attack Behind 80% of Breaches

In 2023, the FBI's Internet Crime Complaint Center received over 298,000 phishing complaints — making it the most reported cybercrime for the fifth consecutive year. Yet every week, I still talk to business owners who think phishing is just "those obvious Nigerian prince emails." It'

Carl B. Johnson Jul 04, 2019 7 min read
Medusa Ransomware

Medusa Ransomware Gang Phishing Campaigns: What to Know

In March 2025, CISA and the FBI issued a joint advisory warning that the Medusa ransomware gang had compromised over 300 organizations across critical infrastructure sectors — healthcare, education, legal, insurance, and manufacturing. The attack vector wasn't some exotic zero-day exploit. It was phishing. Specifically, carefully crafted Medusa ransomware

Carl B. Johnson Jul 04, 2019 6 min read
Phish

How to Phish Your Own Employees Before Hackers Do

A Single Phish Email Cost One Company $37 Million In 2024, Orion SA disclosed that a single employee fell for a business email compromise scheme and wired approximately $60 million to a threat actor's accounts. The company recovered some funds, but the net loss still exceeded $37 million.

Carl B. Johnson Jul 04, 2019 6 min read
Phishing

Phishing: Why It Still Works and How to Stop It

A Single Email Cost One Company $100 Million In 2019, Toyota Boshoku Corporation lost $37 million to a single business email compromise attack. Facebook and Google collectively lost over $100 million to a Lithuanian man who sent fake invoices via email over a two-year period. These weren't sophisticated

Carl B. Johnson Jun 23, 2019 7 min read