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

Advertising Intelligence—ADINT—Can Be Misused For Social Engineering

Oct 22, 2017 10:05:44 AM By Stu Sjouwerman

You are probably aware of the terms SIGINT (signals intelligence, like radio interception) and HUMINT (human intelligence, like espionage). There is a new term coined by the University of ...

The First Recorded Statement Of Security Awareness Training?

Oct 22, 2017 9:11:52 AM By Stu Sjouwerman

I was just sent a link to video of Kevin Mitnick's testimony before a congressional committee of March 2, 2000 where he explained how he was able to hack into dozens of large ...

Lower Cybercrime Costs! Attack Humans...

Oct 20, 2017 2:28:34 PM By Stu Sjouwerman

This could be a headline on a dark web site for cyber criminals. And it would be correct. Our colleagues at Wombat did some digging and came up with relevant research you should know ...

Mobile Phishing Attacks Jump, Financial Industry Is Biggest Target

Oct 17, 2017 1:07:04 PM By Stu Sjouwerman

Jason Koestenblatt at Enterprise Mobility Exchange wrote: "Thanks to the amount of time employees are spending online to get work done, hackers have a veritable treasure trove of ...

CyberheistNews Vol 7 #41

Oct 16, 2017 9:50:36 AM By Stu Sjouwerman

Ransomware Spear Phishing Attack Used To Hide 60M Cyberheist

Oct 16, 2017 6:39:36 AM By Stu Sjouwerman

In a classic "divert their attention", the Taiwan Far East Bank was first attacked with spear phishing emails that pointed to malicious executables, which were clicked on by employees. ...

KnowBe4 Customer: "I’m not happy at all. More like ecstatic."

Oct 15, 2017 2:13:35 PM By Stu Sjouwerman

In our series "What customers say about us" here is another email with feedback that I got when I asked if they were a happy camper. We will let the customer speak for himself: "I’m ...

New Worry For CEOs: A Career-Ending Cybersecurity Breach

Oct 15, 2017 1:57:28 PM By Stu Sjouwerman

Corporate chiefs get more involved in defense against hackers, fearing a cybersecurity breach could cost their jobs, hurt their businesses. Vanessa Fuhnmans wrote an excellent heads-up ...

Watch Out For This New Amazon Phishing/Phone Password Scam

Oct 15, 2017 10:25:46 AM By Stu Sjouwerman

So here’s a new one: a spoofed Amazon email claiming that Amazon has detected an unauthorized attempt to reset the password on the recipient’s account. A six digit code is provided along ...

A New Spear Phishing Attack Uses Compromised Government Servers And DNS

Oct 15, 2017 9:02:54 AM By Stu Sjouwerman

Cisco's Talos malware researchers posted about a highly sophisticated, targeted spear phishing attack using malicious Word attachments, spoofed to look like it was from the U.S. ...

Carbon Black Says Ransomware Kit Sales On The Dark Web Shoot UP 2,502%

Oct 14, 2017 11:09:24 AM By Stu Sjouwerman

A new report from Carbon Black’s Threat Analysis Unit (TAU) used their data and modeling techniques to come up with an estimate of ransomware sales transactions activity on the Dark Web. ...

Scam Of The Week: Las Vegas Shooting Victims Charity

Oct 12, 2017 11:47:11 AM By Stu Sjouwerman

And again—it is enough to make you nauseous—low-life scum on the internet is using a tragedy and try to scam money out of people that want to help the victims. The Nevada Attorney ...

Third Quarter 2017 Top-Clicked Phishing Email Subjects [INFOGRAPHIC]

Oct 11, 2017 5:16:00 PM By Stu Sjouwerman

KnowBe4 customers run millions of phishing tests per year, and we report quarterly on the latest top-clicked phishing email subjects in 3 separate categories: subjects related to social ...

CyberheistNews Vol 7 #40 The Notorious Dark Overlord Mafia Escalates Their Ransomware Threat and Terrorizes Whole Valley

Oct 9, 2017 9:55:17 AM By Stu Sjouwerman

How did the Ukraine become a Hotbed of Criminal Hacking?

Oct 8, 2017 10:01:48 AM By Stu Sjouwerman

The New York Times came out with a great backgrounder why the Ukraine is such a hotbed for cyber criminals like Gennadi Kapkanov, 33, a Russian-born Ukrainian hacker, the man suspected of ...

The Notorious Dark Overlord Mafia Escalates their Ransomware Threat

Oct 7, 2017 5:05:32 PM By Stu Sjouwerman

News has surfaced that the overseas Dark Overlord cyber mafia struck again and penetrated the Columbia Falls School Board system with ransomware. The seven-page ransom letter was filled ...

New Phishing Report: 90% of IT Execs Worry Most About Email Threats

Oct 7, 2017 11:33:19 AM By Stu Sjouwerman

Our colleagues at Phishme released the results of their US Phishing Response Trends Report, which looked at the phishing response strategies of two hundred senior IT security ...

New Survey: IT Security Spending Is Up, But Security Is Not, Ransomware Is The Biggest Worry

Oct 7, 2017 11:11:00 AM By Stu Sjouwerman

The second-annual Cyren-Osterman Research U.S. security survey shows a significant disconnect between rising IT security spending and a low level of confidence in current protection, ...

Two Important KnowBe4 Product Updates

Oct 5, 2017 1:45:00 PM By Stu Sjouwerman

1) KnowBe4 Announces Powerful New Feature: Smart Groups We have added a powerful new feature, Smart Groups, that will help you automate the path your employees take to smarter security ...

KnowBe4’s Record Q3 2017 Performance Fueled by Innovation and Increased Demand

Oct 4, 2017 9:24:36 AM By Stu Sjouwerman

Some excellent news. We announced record results for our Q3 2017, sales were 2.63X greater than Q3 2016. Q3 2017 marks our 18th straight quarter of growth, driven by an increasing ...

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