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

AI-to-AI Communication and Secret AI Code Must Be Stopped At All Costs

As I wrote in my recent book, How AI and Quantum Impacts Cyber Threats and Defenses, as we humans use AI more and more, AI will begin to communicate with itself using new AI-only ...

Fake Calendar Invitations Move to Microsoft Outlook

Fake calendar invites have been a problem on Gmail for years. Even though they could appear on other calendar services, I hadn’t seen or read about a lot of it. Gmail had been taking the ...

TurboTax SMS Scam

It is tax season in the United States and that means plenty of tax scams. I recently received these SMS messages.

Common Facebook Scam Method

A friend posted this on Facebook and it came up on my feed.

Google Reports On Adversarial Use of AI in Late 2025

Google Threat Intelligence Group recently released its latest report, “GTIG AI Threat Tracker: Distillation, Experimentation, and (Continued) Integration of AI for Adversarial Us,” on how ...

Your Password Needs To Be 25 Characters or Longer Due to AI and Quantum Attacks

Prior to my further research into AI and quantum for my latest book, How AI and Quantum Impact Cyber Threats and Defenses, I had pretty solid password policy recommendations:

New Book! How AI and Quantum Impact Cyber Threats and Defenses

I am excited to announce my latest book, How AI and Quantum Impact Cyber Threats and Defenses: Shaping Your Cyber Defense Strategies.

Love in the Age of AI - Why 2026 Romance Scams are Almost Impossible to Spot

Valentine’s Day is usually a time for flowers and candlelight, but in recent years the digital dating landscape has shifted from a place of hope to a high-tech minefield. While ...

ConsentFix Attacks Fake Cloudflare Prompts

ClickFix attacks have been around for decades; only the name is new. ClickFix attacks use social engineering to trick users into clicking on buttons and links that the user is told are ...

Be Careful of That Warrant for Your Arrest

A popular phone call/voicemail scam (i.e., vishing) involves someone calling you, claiming to be law enforcement with a warrant for your arrest, and then offers you an opportunity to ...