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

VCs Validate Security Awareness Training

Nov 18, 2012 6:32:20 AM By Stu Sjouwerman

I am very encouraged to see our friends at PhishMe getting 2.5 Million in Venture money to expand their business. With this new investment, Christopher Steed, Vice President at Paladin ...

On Competition

Nov 11, 2012 1:40:42 AM By Stu Sjouwerman

On competition: "Every successful startup goes through four phases in the eyes of competitors. First, they ignore you, because you're tiny and irrelevant. Then they ridicule you, because ...

13 security threats to counter in 2013

Nov 7, 2012 9:45:45 AM By Stu Sjouwerman

ITPRO UK was early this year with their crystal ball predictions! "As the end of the year closes in on us, it's time to think about the profile of the enterprise threat surface for the ...

Alarming number of merchants unaware of PCI DSS

Nov 7, 2012 9:38:48 AM By Stu Sjouwerman

Help Net Security had the story: The last four years have been marked by continued growth in small business data compromise, yet small business owners are still missing the point of the ...

How a Coca-Cola Exec Fell for a Hacker's E-mail Trick

Nov 7, 2012 9:35:54 AM By Stu Sjouwerman

In the annals of what-was-I-thinking moments in computer security, this has to be one of the most gobsmacking. According to a Bloomberg News investigation of a series of undisclosed ...

7 shortcuts To Get Your Network Hacked Final Results

Nov 7, 2012 3:24:45 AM By Stu Sjouwerman

[caption id="" align="aligncenter" width="700"] Shortcuts To Get Hacked[/caption] October 30, 2012 we asked system administators: "In your opinion, what are the most gruesome errors a ...

Cyberheists A Helluva Wake-up Call to Small Biz

Nov 6, 2012 1:49:43 AM By Stu Sjouwerman

Brian Krebs has an excellent example of a recent cyberheist. Read it and weep! The $180,000 robbery took the building security and maintenance system installer Primary Systems Inc. by ...

Top 5 Spear-Phishing Attacks Targeting Executives

Nov 2, 2012 8:15:17 AM By Stu Sjouwerman

Twice a year, KnowBe4 publishes the Top 5 spear-phishing attacks that are used to lure executives into clicking on links or open infected attachments. We recommend sending this list to ...

CyberheistNews vol2, #47

Nov 1, 2012 7:16:35 AM By Stu Sjouwerman

CyberheistNews vol2, #46

Nov 1, 2012 7:13:29 AM By Stu Sjouwerman

The TOP 10 BYOD Gotchas

Nov 1, 2012 7:06:52 AM By Stu Sjouwerman

Did you know? On any given day across the globe, the number of iPhones sold will exceed the number of babies born (378,000 to 371,000) The problem is that mobile device security has not ...

Researcher Warns 'Zombie Browsers' Are Skyrocketing

Oct 31, 2012 9:38:00 AM By Stu Sjouwerman

Ellen Messmer at Network World covered this one: "Some Web browsers can be tricked into using so-called "malicious extensions" that can give hackers the ability to hijack the user's ...

2013 Security Awareness Training Survey

Oct 31, 2012 7:46:07 AM By Stu Sjouwerman

I just recevied some interesting information. SearchSecurity.com surveyed IT professionals about their end-user security training purchase intentions for 2013. The numbers are revealing. ...

7 shortcuts To Get Your Network Hacked

Oct 30, 2012 10:51:04 AM By Stu Sjouwerman

[caption id="" align="aligncenter" width="700"] Shortcuts To Get Hacked[/caption] Today, October 30, 2012 we asked system administators: "In your opinion, what are the most gruesome ...

Why We Are Doing This

Oct 26, 2012 10:56:46 AM By Stu Sjouwerman

Some of you might remember Sunbelt Software, which from 1996 to 2010 sold system admin and security tools for Windows Server. I am one of the two co-founders of Sunbelt. After ...

Cybergeddon - New Web Series Sponsored By Symantec

Oct 21, 2012 7:18:11 AM By Stu Sjouwerman

Industrial Control Systems The Next Twin Towers

Oct 21, 2012 2:19:14 AM By Stu Sjouwerman

[caption id="" align="aligncenter" width="588"] Shodan Network[/caption] Eugene Kaspersky a few days ago wrote a hair-raising blog post about the reality of our Industrial Control Systems ...

What Is The Top Phishing Day Of The Week? And Why?

Oct 17, 2012 10:05:19 AM By Stu Sjouwerman

[caption id="" align="alignleft" width="280" caption="Top Phishing Day"][/caption] Websense reported on October 8, 2012 about their July-August 2012 research. They said: "A disturbing new ...

Real-time Cyber-Attack Map

Oct 17, 2012 9:35:23 AM By Stu Sjouwerman

[caption id="" align="aligncenter" width="625" caption="Real-time Cyber-Attack Map"][/caption] James Fallows reported on his latest blog about the new real-time map of the honeynet ...

What a live botnet looks like YIKES

Oct 16, 2012 10:58:07 AM By Stu Sjouwerman

[caption id="" align="aligncenter" width="760" caption="ZeroAccess Botnet"][/caption] MIT's Technology Review posted something fasctinating put together by Mike Orcutt. What you see above ...

Security Awareness Training Blog

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