KnowBe4 Blog

Keeping you informed. Keeping you aware.
Stay on top of the latest in human and agent security including social and prompt engineering, ransomware and phishing attacks.

Roger Grimes

CISO Advisor

Roger A. Grimes, CISO Advisor for KnowBe4, Inc., is the author of 15 books and over 1500 articles, specializing in host security and preventing hacker and malware attacks. Roger is a frequent speaker at national computer security conferences and his presentations are fast-paced and filled with useful facts and recommendations.
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Recent Posts

Ransomware Trends in 2025

I’ve been following ransomware since the first one, the AIDS Cop Trojan, was released in December 1989.

The Attack On Browser-Based AI Agents Is Coming

We are working tirelessly on our AI First strategy to better protect both humans and their AI tools.

AI Attacks Are Coming in a Big Way Now!

AI is going to allow better, faster, and more pervasive attacks.

FTC States That Scams Cost U.S. Consumers $158.3 Billion in One Year

I am used to repeating some pretty big numbers when talking about the financial impact of cybercrimes. When you look into the data, it is pretty easy to start talking about tens of ...

What Is AI?

What is AI really? Throughout this article, I will remove the hype and get to the most honest answer ever.

Fake MFA Reset Warning Message

A KnowBe4 co-worker of mine recently got this SMS phishing message (i.e., smish).

If I Had Only 20 Seconds To Teach People How To Avoid Scams

Human risk management involves more than security awareness training, but training is a huge part of the mix.

Beware of Coinbase Scams

I got this Coinbase-related scam in my personal inbox last week.

Agentic AI Ransomware Is On Its Way

Agentic AI-enabled ransomware is not here yet, but likely will be very soon. I am talking this year or by 2026.

You Are Still Vulnerable to Password Attacks When Using Passkeys

Just because you’re using a passkey doesn’t mean your password is gone.