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

New Ransomware CryptoWall Comes With A Twist

Jun 6, 2014 4:32:00 PM By Stu Sjouwerman

We’ll Pay Your Crypto-Ransom If You Get Hit With Ransomware

Jun 5, 2014 2:26:00 PM By Stu Sjouwerman

We’ll Pay Your Crypto-Ransom If You Get Hit

CyberheistNews Vol 4, # 22 Ransomware Holds iPhones and iPads Hostage

Jun 3, 2014 8:54:00 AM By Stu Sjouwerman

CyberheistNews Vol 4, # 22

Malware creation breaks all records! 160,000 new samples every day

May 31, 2014 5:09:00 PM By Stu Sjouwerman

Helpnet Security reported: Malware creation has broken all records during this period, with a figure of more than 15 million new samples, and more than 160,000 new samples appearing every ...

New Ransomware Holds iPhones and iPads Hostage

May 31, 2014 4:29:00 PM By Stu Sjouwerman

That ransomware payment is coming out of your allowance

May 30, 2014 3:55:00 PM By Stu Sjouwerman

Cartoon: Parenting is very different in 2014 compared to 1989! "That ransomware payment is coming out of your allowance."

CyberheistNews Vol 4, # 21 Make The Bad Guys Pay!

May 27, 2014 9:52:00 AM By Stu Sjouwerman

CyberheistNews Vol 4, # 21

Scam Of The Week: eBay Password Reset Phishing Emails

May 23, 2014 1:10:00 PM By Stu Sjouwerman

Ok, unless you were on an Internet-free vacation (fat chance); you have heard that eBay managed to lose all its 145 million credentials.

Want To Make A Thousand Bucks? Refer A Salesrep To KnowBe4

May 20, 2014 4:47:00 PM By Stu Sjouwerman

KnowBe4 will pay anyone a thousand bucks for a referral that gets us a good sales rep!

CyberheistNews Vol 4, # 20 CryptoLocker Goes Spear-Phishing

May 20, 2014 9:15:00 AM By Stu Sjouwerman

CyberheistNews Vol 4, # 20

And in THIS corner we have Dave

May 19, 2014 11:23:00 AM By Stu Sjouwerman

I thought you would enjoy this cartoon! LOL Stu

CryptoLocker Goes SpearPhishing

May 17, 2014 11:26:00 AM By Stu Sjouwerman

You may be familiar with a site called Spiceworks. They have free system admin and network management software, and their business model is advertising to the hundreds of thousands that ...

Elite Hackers Develop Cybercrime Attack Kits As Market Matures

May 17, 2014 7:40:00 AM By Stu Sjouwerman

Today, in the Wall Street Journal, an article told the story of a software product called blackshades that experts call a "rat" (Remote Access Trojan) which was commercially sold to cyber ...

Scam Of The Week: Fake Purchase Orders

May 16, 2014 12:19:00 PM By Stu Sjouwerman

This could be a very expensive scam to fall for, so keep on reading.

Microsoft to XP You Are Dead To Us

May 16, 2014 10:36:00 AM By Stu Sjouwerman

Microsoft to XP: "You Are Dead To Us". This week, Redmond reminded all of us still running XP that we would not receive security updates on Patch Tuesday or any future patches of any kind.

NISTs New Approach to Cybersecurity Standards

May 14, 2014 10:30:00 AM By Stu Sjouwerman

Applying Engineering Values to IT Security. The National Institute of Standards and Technology is developing new cybersecurity standards based on the same principles engineers use to ...

Whitelisting Community Preview: MalwareShield

May 13, 2014 10:27:00 AM By Stu Sjouwerman

You have heard me talk about whitelisting the last few years. Well I have some news! You may not know that most of us here at KnowBe4 are ex-antivirus people who came from the Sunbelt ...

CyberheistNews Vol 4, # 19 Scam Of The Week: Mobile Ransomware

May 13, 2014 9:50:00 AM By Stu Sjouwerman

CyberheistNews Vol 4, # 19

Are You Being Targeted By Hot Foreign Spies?

May 12, 2014 1:43:00 PM By Stu Sjouwerman

Ready to be hit upon by the likes of Anna Chapman? MI5 in the UK warned that foreign spy agencies are targeting IT workers within big organizations as a means of gaining privileged access ...

Malware Only Lives For A Few Hours

May 12, 2014 10:34:00 AM By Stu Sjouwerman

Rob Rachwald and Zheng Bu at FireEye came up with some interesting observations: "At FireEye, we look at hundreds of malware samples daily, and, in a recent talk at RSA Conference, Zheng ...

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