Stu Sjouwerman

Chief Executive Officer & President

Stu Sjouwerman (pronounced “shower-man”) is the founder and CEO of KnowBe4, Inc., which hosts the world’s most popular integrated security awareness training and simulated phishing platform, with over 54,000 organization customers and more than 50 million users. A serial entrepreneur and data security expert with 30 years in the IT industry, Stu was the co-founder of Inc. 500 company Sunbelt Software, a multiple award-winning anti-malware software company that was acquired in 2010.

Books

Cyberheist E-Book

Find all of Stu's books on Amazon

Hackers Pull A Tasty Variation on the ACH Cyberheist Technique

Jan 25, 2011 11:48:46 AM By Stu Sjouwerman

On January 19, PC World reported an interesting twist on an old but still favorite phishing scam called the ACH, or Automated Clearing House, scam in a story entitled "Hackers Steal ...

Phishing Primer Part 2: Spotting the Lure

Jan 24, 2011 3:56:54 AM By Stu Sjouwerman

Last Thursday, we posted a blog entitled "Phishing Primer, Part 1;" here is Part 2 in that ongoing series of brief expositions on this fascinating subject that is also a clear and present ...

FDIC Issues "Patriot Act" Phishing Scam Warning

Jan 21, 2011 6:02:58 AM By Stu Sjouwerman

Earlier this week on January 18, the US Federal Deposit Insurance Corporation (FDIC) issued its tenth special alert for 2011 (SA-10-2011). Its summary provides an excellent explanation ...

Internet Security Awareness Training: The Enduring Value of User Education and Awareness

Jan 21, 2011 2:27:31 AM By Stu Sjouwerman

Theres an old saying that If you create a system that any idiot can use, then only idiots will find it useful. And while many companies and organizations may feel compelled to dumb ...

Internet Security Awareness Training Basics

Jan 19, 2011 6:33:26 AM By Stu Sjouwerman

A great many teaching stories from various traditions emphasize how the press of daily life, or normal human emotions, can crowd out and turn off common sense. At its core foundation, ...

Phishing Primer, Part 1

Jan 18, 2011 3:41:55 AM By Stu Sjouwerman

Phishing takes its inspiration from the piscatorial arts, where an angler uses an attractive and perhaps even appetizing-looking or –seeming lure (well, to a fish anyway) to entice an ...

Phishing for Trouble: At-work Email Behavior Can Affect the Bottom Line in Unexpected Ways

Jan 18, 2011 1:42:45 AM By Stu Sjouwerman

Even financial professionals can get snared at work by e-mails that purport to deal with routine, straightforward transactions. One interesting phishing scam that occurred as recently as ...

Internet Security Awareness Training: KnowBe4 Is Going On The Road

Jan 17, 2011 5:10:40 PM By Stu Sjouwerman

KnowBe4 will be making a splash in 2011! We have several events on our calendar where you can see us and we hope to see you at several of these events where we would love to show you our ...

Phish-Prone Percentage: 20%

Jan 13, 2011 6:50:18 AM By Stu Sjouwerman

Today we did a "Free Security Audit" with a company that wanted to test their 100+ employees. When we talked to the IT Manager and told him what simulated attack we were planning, he said ...

Internet Security Awareness Training: Dynamic Content Updates - The Secret Sauce

Jan 8, 2011 5:09:51 PM By Stu Sjouwerman

Up to now, Security Awareness Training was static. Canned instruction sessions that could be a year old, an eternity on the Internet. Cyber criminals move fast though. Malware evolves ...

Internet Security Awareness Training: 7 Reasons Why Organizations Use Online Training

Jan 8, 2011 5:09:09 PM By Stu Sjouwerman

7 Reasons Why Organizations Use Online Training 1. Reduce Costs - How you manage training is always about how you manage costs. 2. Access to Talent - Especially hard when it gets to ...

Internet Security Awareness Training: Defense-In-Depth

Jan 8, 2011 4:01:33 PM By Stu Sjouwerman

What is defense-in-depth? Organizations defend their networks on each of the six levels in the graph you see. End-user Internet Security Awareness Training resides in the outer layer: ...

Cybercrime and Cyberheists: How The Bad Guys Siphoned $70 Million

Jan 8, 2011 3:57:43 PM By Stu Sjouwerman

"The Internet is the crime scene of the 21st Century,"

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