Roger Grimes

Data-Driven Defense Evangelist

Roger A. Grimes is Data-Driven Defense Evangelist at KnowBe4. He is a 30-year computer security professional, author of 13 books and over 1,200 national magazine articles. He frequently consults with international organizations of all sizes and many of the world’s militaries. Grimes regularly presents at national computer security conferences, and is known for his often contrarian, fact-filled viewpoints.

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The Good, the Bad, and the Ugly About MFA

Mar 8, 2021 11:48:24 AM By Roger Grimes

I have been in computer security for over 34 years now. Yeah, even I cannot believe how long it has been. I have been a penetration tester over 20 of those years and worked on dozens of ...

Caught by a CAPTCHA?

Feb 15, 2021 3:15:42 PM By Roger Grimes

Be aware of being involved in malicious CAPTCHA solving.

It’s Not Only About the URL

Feb 11, 2021 3:01:41 PM By Roger Grimes

You have to look at the totality of an email to determine whether it is a phishing attack or not.

The Three Best Things You Can Do To Improve Your Computer Security

Feb 9, 2021 7:48:35 AM By Roger Grimes

The three best things you can do to improve your computer security, bar anything, have been the same three things you should have already been doing for the entirety of computers. The top ...

One-Fourth of a SOC’s Life Is Researching Sketchy Emails

Feb 5, 2021 1:52:21 PM By Roger Grimes

This is a pretty amazing stat – nearly one-fourth of a security operation center’s (SOC’s) time is spent preventing, detecting, responding to, and researching potentially malicious ...

Beware the Long Con Phish

Jan 28, 2021 8:00:00 AM By Roger Grimes

Social engineering and phishing happen when a con artist communicates a fraudulent message pretending to be a person or organization which a potential victim might trust in order to get ...

Motivations of Phishing Criminals

Jan 22, 2021 8:44:00 AM By Roger Grimes

Phishers, people who are phishing other people (i.e., victims), have reasons for doing so. They are all criminals…cons…each pretending to be something they are not in order to trick ...

The Many Ways You Can Be Phished

Jan 22, 2021 8:38:17 AM By Roger Grimes

Social engineering and deception are as old as humanity itself. Phishing is social engineering and deception via digital means and has been with us since the beginning of computers. After ...

2020 Top Phishing and Vishing Attacks And Trends

Dec 31, 2020 10:06:25 AM By Roger Grimes

It’s an extra challenging year, harder than most, to choose the most impactful cybersecurity events. The year ended with a bang – the Solarwinds supply chain attack – which possibly ...

How Can You Be More at Risk With MFA?

Dec 23, 2020 1:43:26 PM By Roger Grimes

In my recent comment on the Solarwinds’ cyber attack, I made the claim that using multifactor authentication (MFA) can sometimes make you more at risk than using a simple login name and ...

Solarwinds MFA Bypass Attack Pushes Limits

Dec 16, 2020 12:59:35 PM By Roger Grimes

Excellent, long-time, tech reporter Dan Goodin reported in Ars Technica that the recent Solarwinds’ supply chain attack involved hackers bypassing a popular multi-factor authentication ...

Shame! Shame! I Got Phished

Dec 14, 2020 8:00:00 AM By Roger Grimes

I can’t be phished. At least that’s what I used to believe.

Why Are You Being Phished?

Dec 8, 2020 4:05:42 PM By Roger Grimes

People often wonder, why are they being phished? Why are they being phished by a hacker in the first place? What does their organization have that some hacker decided they were noteworthy ...

The Most Common Password Frustrations

Nov 9, 2020 5:01:48 PM By Roger Grimes

We all know the well-worn adage to make our passwords long and complex. Sometimes trying to do so can be completely frustrating.

6 Lessons I Learned from Hacking 130 MFA Solutions

Nov 5, 2020 2:16:43 PM By Roger Grimes

I was fortunate enough to write Wiley’s Hacking Multifactor Authentication. It’s nearly 600-pages dedicated to showing attacks against various multi-factor authentication (MFA) solutions ...

[NEW BOOK] Hacking Multi-Factor Authentication

Oct 27, 2020 8:58:07 AM By Roger Grimes

I’m excited to announce the release of my 12th book, Hacking Multifactor Authentication.

Beware of Fake Forwarded Phishes

Sep 17, 2020 3:29:13 PM By Roger Grimes

There are many specific, heightened challenges of spear phishing emails coming from compromised, trusted third parties. Trusted third-party phishing emails usually come from the ...

Check Your Email Rules for Maliciousness

Sep 2, 2020 4:07:15 PM By Roger Grimes

Email rules have been used maliciously for decades. Learn about email rules and what you need to do to defend your organization against their malicious misuse.

How to Defend Against Phishes Coming from Trusted Partners

Aug 31, 2020 9:54:51 AM By Roger Grimes

One of the most frequent concerns I hear from IT security practitioners and CISOs is the rise of phishing attacks coming from compromised trusted partners and contractors. The attackers ...

Watch Out for OAuth Phishing Attacks and How You Can Stay Safe

Aug 19, 2020 3:53:03 PM By Roger Grimes

A steadily growing phishing trend involves phishing emails which attempt to modify your OAuth permissions. Simply clicking on one Allow button or hitting ENTER by mistake can ...

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Roger Grimes

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Books

Recent Posts

The Good, the Bad, and the Ugly About MFA

Caught by a CAPTCHA?

It’s Not Only About the URL

The Three Best Things You Can Do To Improve Your Computer Security

One-Fourth of a SOC’s Life Is Researching Sketchy Emails

Beware the Long Con Phish

Motivations of Phishing Criminals

The Many Ways You Can Be Phished

2020 Top Phishing and Vishing Attacks And Trends

How Can You Be More at Risk With MFA?

Solarwinds MFA Bypass Attack Pushes Limits

Shame! Shame! I Got Phished

Why Are You Being Phished?

The Most Common Password Frustrations

6 Lessons I Learned from Hacking 130 MFA Solutions

[NEW BOOK] Hacking Multi-Factor Authentication

Beware of Fake Forwarded Phishes

Check Your Email Rules for Maliciousness

How to Defend Against Phishes Coming from Trusted Partners

Watch Out for OAuth Phishing Attacks and How You Can Stay Safe

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