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

Should You Use Controversial Simulated Phishing Test Emails?

The Wall Street Journal recently published an article about using highly-emotionally charged, “controversial”, subjects in simulated phishing tests. Controversial topic examples include ...

Malicious URLs In Phishing Emails: Hover, Click and Inspect Again

The most often recommended piece of anti-phishing advice is for all users to “hover” over a URL link before clicking on it. It is great advice.

[Cybersecurity Awareness Month] Spoofy Steve's Business Email Compromise Scams You Need to Watch Out For

Like a ghost, most business email compromise (BEC) scams are able to sneak through most technical defenses and end up in end-user inboxes.

How Secure Is Your Authentication Method?

I frequently write about authentication, including PKI, multi-factor authentication (MFA), password managers, FIDO, Open Authentication, and biometrics. I have written dozens of articles ...

Social Engineering Is the Number One Cybersecurity Problem by Far

The number one way that hackers and malware compromise people, devices, and networks is social engineering. No one argues that anymore, but it was not always known or discussed that way. ...

[GUIDE] Scary SEO and Waterhole Attacks: What You Need to Know Now

Most social engineering scams search out their potential victims, often sending emails to known email addresses, sending chat messages to them or calling known phone numbers. The ...

How KnowBe4 Can Help You Fight Spear Phishing

This blog was co-written by KnowBe4's Data-Driven Defense Evangelist Roger A. Grimes and Chief Learning Officer John Just. Social engineering is involved in 70% to 90% of successful ...

Want To Stop All Scams? Here Is How!

There are many ways to be socially engineered and phished, including email, websites, social media, SMS texts, chat services, phone calls and in-person. These days, it is hard to sell ...

Why Do You Still Need Security Awareness Training If You Use Phishing-Resistant MFA?

For years, KnowBe4 has been a long-time proponent of everyone using PHISHING-RESISTANT multi-factor authentication (MFA) whenever possible.

[Wake-Up Call] It's Time to Focus More on Preventing Spear Phishing

Fighting spear phishing attacks is the single best thing you can do to prevent breaches.