Carl B. Johnson
Author

Carl B. Johnson

vCISO and compliance expert.

https://carlbjohnson.com

posts

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
Securing Employee Mobile Devices

Securing Employee Mobile Devices: A 2025 Field Guide

The Text Message That Cost One Company $40 Million In 2024, a sophisticated smishing campaign targeted employees at several major financial institutions. Threat actors sent SMS messages impersonating IT support, directing staff to fake login portals that harvested credentials and multi-factor authentication tokens. The attackers then used those stolen credentials

Carl B. Johnson Apr 20, 2025 7 min read
Shoulder Surfing Attack

Shoulder Surfing Attack: The Low-Tech Threat That Still Works

In 2023, a Ponemon Institute study sponsored by 3M found that 91% of visual hacking attempts — someone simply looking at a screen — were successful. No malware. No zero-day exploit. No phishing email. Just a person standing in the right place at the right time, reading credentials off someone else'

Carl B. Johnson Apr 20, 2025 7 min read
Clean Desk Policy

Clean Desk Policy Cybersecurity: Your Cheapest Defense

In 2023, a healthcare organization in the Midwest lost over 2,000 patient records — not because a hacker exploited a zero-day vulnerability, but because an employee left printed patient lists on their desk over the weekend. A cleaning contractor photographed them. That's it. No malware, no phishing email,

Carl B. Johnson Apr 20, 2025 7 min read
Cybersecurity Culture

Cybersecurity Culture in the Workplace: A Practical Guide

The Breach That Started With a Single Slack Message In September 2022, a threat actor convinced a Uber contractor to approve a multi-factor authentication push notification. That single moment of human failure gave the attacker access to Uber's internal systems, including their Slack workspace, vulnerability reports, and financial

Carl B. Johnson Mar 29, 2025 8 min read