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Threat Actors

Learn about the individuals and groups behind cyberattacks, including nation-state hackers, cybercriminal organizations, hacktivists, and insider threats. These articles analyze motivations, tactics, and real-world examples to help you understand who poses risks to your digital assets.

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Spoof

Spoof Attacks: How Threat Actors Trick Your Defenses

The CEO Email That Wasn't From the CEO In early 2025, a mid-sized logistics company wired $3.1 million to a bank account in Hong Kong. The CFO had received an email — apparently from the CEO — requesting an urgent wire transfer for a confidential acquisition. The email address

Carl B. Johnson Jan 17, 2026 7 min read
What Is Cybersecurity

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

A $4.88 Million Question Nobody Asks Until It's Too Late In May 2023, the city of Dallas, Texas got hit with Royal ransomware. Emergency services disrupted. Court systems offline. Weeks of recovery. The estimated cost ran into tens of millions. And the entry point? A service account

Carl B. Johnson Nov 06, 2025 7 min read
Ransomware Examples

Ransomware Examples 2025: Real Attacks Shaping Defenses

Ransomware Isn't Slowing Down — It's Shapeshifting In February 2024, Change Healthcare suffered what became one of the most devastating ransomware attacks in U.S. history. The ALPHV/BlackCat ransomware group crippled the nation's largest health care payment processor, disrupting pharmacies, hospitals, and insurance claims

Carl B. Johnson Jul 19, 2025 7 min read
Dark Web

What Is the Dark Web? A Security Pro's Real-World Guide

Your Stolen Password Is Already For Sale Somewhere In January 2024, a dataset called "Naz.API" surfaced on dark web forums containing over 70 million unique email addresses paired with plaintext passwords. The data had been harvested from credential-stealing malware installed on everyday people's computers. If

Carl B. Johnson Feb 28, 2025 7 min read
Cybersecurity Glossary

Cybersecurity Glossary for Beginners: 40 Terms You Need

When the Colonial Pipeline ransomware attack shut down fuel distribution across the U.S. East Coast in May 2021, millions of people suddenly needed to understand words like "ransomware," "threat actor," and "critical infrastructure." But most glossaries online read like they were written by

Carl B. Johnson Jan 06, 2025 8 min read
SQL Injection

SQL Injection Explained: The Attack That Won't Die

A 20-Year-Old Vulnerability Still Dominating Breach Reports In 2023, the MOVEit Transfer vulnerability (CVE-2023-34362) compromised over 2,600 organizations and exposed data on more than 77 million individuals. At its core, the exploit was a SQL injection. The Cl0p ransomware gang used it to steal data from federal agencies, major

Carl B. Johnson Dec 19, 2024 7 min read
Medusa Ransomware

Medusa Ransomware Gang Phishing Campaigns Explained

A $100,000 Ransom Demand Starts With One Email In early 2024, the FBI and CISA issued a joint advisory warning that the Medusa ransomware gang had compromised over 300 organizations across critical infrastructure sectors since June 2021. The attack chain almost always starts the same way: phishing campaigns targeting

Carl B. Johnson Nov 07, 2024 7 min read
Spoofing

What Is Spoofing? The Attack Behind Most Breaches

In January 2024, a finance employee at engineering firm Arup wired $25 million to criminals after a video call with what appeared to be the company's CFO and several colleagues. Every person on that call was a deepfake. The attackers had spoofed not just an email address or

Carl B. Johnson Aug 19, 2024 8 min read
What Is Cybersecurity

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

In 2023, the FBI's Internet Crime Complaint Center received over 880,000 complaints with potential losses exceeding $12.5 billion — a 22% increase in losses from the year before. That's not a theoretical number. Those are real businesses shuttered, real retirement accounts emptied, and real hospitals

Carl B. Johnson Jul 10, 2024 6 min read