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Endpoint Security

Comprehensive resources on securing laptops, desktops, mobile devices, and other endpoints that connect to your network. Covers endpoint detection and response tools, device hardening, patch management, encryption, and policies that minimize the attack surface across distributed environments.

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Trojan Horse Malware

Trojan Horse Malware: What It Really Does to You

In 2023, the FBI's Internet Crime Complaint Center received over 880,000 complaints with losses exceeding $12.5 billion — and a staggering number of those incidents started with a single file that looked perfectly legitimate. That file was trojan horse malware, disguised as an invoice, a software update,

Carl B. Johnson Apr 01, 2026 5 min read
Computer Virus Prevention

Computer Virus Prevention: 9 Steps That Actually Work

The Virus That Cost a Hospital Chain $100 Million In 2017, the NotPetya wiper malware tore through networks worldwide in under 24 hours. Heritage Valley Health System lost access to its entire network — radiology, cardiology, even surgical systems went dark. Across the globe, Maersk lost nearly $300 million. Merck reported

Carl B. Johnson Nov 06, 2025 7 min read
Computer Virus Prevention

Computer Virus Prevention: 9 Steps That Actually Work

A Single Click Cost One Hospital Chain $100 Million In 2024, Change Healthcare — the largest health payment processor in the United States — was hit by the ALPHV/BlackCat ransomware group. The attack disrupted pharmacy operations, delayed insurance claims, and ultimately cost UnitedHealth Group an estimated $872 million in the first

Carl B. Johnson Oct 15, 2025 7 min read
Mobile Device Security Policy

Mobile Device Security Policy: What Yours Is Missing

A Single Stolen Phone Cost This Company $4.9 Million In 2023, a healthcare organization reported to the HHS that a single unencrypted mobile device — left in a rideshare — led to the exposure of over 100,000 patient records. The resulting HIPAA settlement, remediation costs, and reputational damage ran into

Carl B. Johnson Apr 22, 2025 7 min read
BYOD Security Risks

BYOD Security Risks: What's Really on Your Network

The Personal Phone That Took Down a Hospital Network In 2023, a nurse at a regional hospital plugged her personal phone into a workstation USB port to charge it. That phone carried malware picked up from a third-party app store. Within 72 hours, ransomware had encrypted patient records across three

Carl B. Johnson Apr 22, 2025 7 min read
Malware

What Is Malware? A Security Pro's Field Guide for 2025

A Single Click Cost MGM Resorts $100 Million In September 2023, a threat actor called Scattered Spider used social engineering to trick an MGM Resorts help desk employee into resetting credentials. Within hours, they deployed malware across MGM's network — crippling hotel check-ins, slot machines, and digital room keys

Carl B. Johnson Jan 06, 2025 7 min read
Trojan Horse Malware

Trojan Horse Malware: How It Gets In and How to Stop It

In September 2023, MGM Resorts watched helplessly as its systems went dark — slot machines frozen, hotel check-ins offline, operations paralyzed for ten days. The estimated cost exceeded $100 million. The attack vector? Social engineering that led to credential theft, which opened the door for malware deployment across the enterprise. That&

Carl B. Johnson Dec 19, 2024 7 min read
Keylogger Attack

Keylogger Attack: How Hackers Steal Every Keystroke

In March 2024, security researchers at Fortinet uncovered a campaign distributing Snake Keylogger through phishing emails disguised as payment remittance notices. The malware silently captured credentials from over 280 banking and email applications before exfiltrating everything to attacker-controlled Telegram bots. The victims had no idea. Every password, every credit card

Carl B. Johnson Dec 19, 2024 6 min read
Computer Virus Prevention

Computer Virus Prevention: 9 Steps That Actually Work

In January 2024, a single employee at a mid-sized accounting firm double-clicked a file named Invoice_Final_v2.exe. Within 40 minutes, the LockBit ransomware variant had encrypted 14,000 files across three networked drives. The ransom demand was $2.2 million. The firm's antivirus was installed. It

Carl B. Johnson Jul 13, 2024 6 min read