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

Netflix, ABC Hacker Promises More Phishing: "Hollywood Is Under Attack"

Jun 7, 2017 7:29:36 AM By Stu Sjouwerman

The Hollywood Reporter (THR) talked directly to TheDarkOverlord hacking collective that claims to have studio films. They said: "We're in the business of earning vast amounts of internet ...

Top Secret NSA Doc Shows Russians Spear-Phishing Election Officials

Jun 6, 2017 8:00:18 AM By Stu Sjouwerman

The Intercept reported that the GRU (Russian Military Intelligence, the FSB's counterpart) executed a cyberattack on at least one U.S. voting software supplier and sent spear-phishing ...

CyberheistNews Vol 7 #23

Jun 5, 2017 9:55:13 AM By Stu Sjouwerman

Have We Reached "Peak Ransomware"?

Jun 3, 2017 11:34:36 AM By Stu Sjouwerman

There was an article with the title: "Don’t panic: We’ve reached ‘peak ransomware’" in a publication called The Memo. They decided to ask an expert: Rik Ferguson, VP of security research ...

Scam Of The Week: DMV Warns Drivers About Traffic Ticket Phishing

Jun 3, 2017 9:24:31 AM By Stu Sjouwerman

Online reporter Doug Olenick at SC Media was the first to point to a press release from the NY State Department of Motor Vehicles warning about a phishing scam where New York drivers are ...

Did you know how the word Phishing came to be?

Jun 2, 2017 2:50:15 PM By Stu Sjouwerman

I found this at ComputerWorld: "The word phishing was coined around 1996 by hackers stealing America Online accounts and passwords. By analogy with the sport of angling, these Internet ...

Powerful New KnowBe4 Feature: Training Notifications Are Here!

Jun 2, 2017 1:00:01 PM By Stu Sjouwerman

We have a powerful new feature that you can use now. Here is the data about the training notifications and how they work. This feature is for all subscription levels that have training, ...

Vladimir Putin Approves Of Patriotic Russian Hackers

Jun 2, 2017 7:28:21 AM By Stu Sjouwerman

The WSJ just posted a very interesting article by Nathan Hodge confirming what we have been saying here for the last few years. Russian President Vladimir Putin suggested in St Petersburg ...

Florida Governor Rick Scott sent KnowBe4 a Congrats Letter

May 31, 2017 1:00:58 PM By Stu Sjouwerman

KnowBe4 received a very nice letter from Florida Governor Rick Scott, saying: "Dear Mr. Sjouwerman, Congratulations on KnowBe4, Inc. recently being included in the Tampa Bay Business ...

CyberheistNews Vol 7 #22 [Heads-Up] Cyber Insurance Does Not Pay out for Human Error

May 30, 2017 9:34:13 AM By Stu Sjouwerman

How A Fake Cybersecurity Statistic Raced Through Washington

May 29, 2017 11:02:30 AM By Stu Sjouwerman

Nextgov wrote: "It’s the kind of figure that can make your jaw drop, the kind that forces lawmakers and public officials to get off their duffs and do something, that drives home the way ...

Scam Of The Week: Tech Support Exploits WannaCry Ransomware Fears

May 29, 2017 9:53:10 AM By Stu Sjouwerman

We all know about the infamous WannaCry ransomworm which caused a worldwide 1 billion dollars in damage, targeting mainly un-patched Windows 7 machines. As expected, the bad guys are now ...

Symantec: "Email Becomes the Weapon of Choice"

May 29, 2017 8:37:05 AM By Stu Sjouwerman

Symantec's 2017 Internet Security Threat Report (ISTR) details how simple tactics and innovative cyber criminals led to unprecedented outcomes in global threat activity. This report ...

[Heads-Up] Cyber Insurance Does Not Pay Out For Human Error

May 29, 2017 7:57:36 AM By Stu Sjouwerman

The WanaCry ransomworm has caused insurance companies really to take notice. Customers have started to file damage claims, it is a bit early however to see the insurance industry's full ...

Kevin Mitnick And I Did The Cyber Investing Summit Keynote At The NYSE

May 24, 2017 4:50:53 PM By Stu Sjouwerman

The Second Annual Cyber Investing Summit met yesterday at the New York Stock Exchange, and Kevin and I did the keynote, the first time in 5 years that we made it on stage together, which ...

CyberheistNews Vol 7 #21 Scam of the Week: Massive DocuSign Phishing Attacks

May 22, 2017 9:52:27 AM By Stu Sjouwerman

Exclusive: North Korea's Unit 180, the cyber warfare cell that worries the West

May 21, 2017 12:18:54 PM By Stu Sjouwerman

Ju-min Park and James Pearson from Reuters wrote a remarkable piece that you need to know about. They wrote: "North Korea's main spy agency has a special cell called Unit 180 that is ...

The New Ransom Target: Entertainment Files. Who Is The Next Phishing Victim?

May 21, 2017 7:18:35 AM By Stu Sjouwerman

Remember the James Bond movie Goldfinger? It was based on Ian Fleming's seventh novel, which first featured the timeless quote: "Once is happenstance, twice is coincidence, the third time ...

Scam Of The Week: Massive DocuSign Phishing Attacks

May 20, 2017 10:20:42 AM By Stu Sjouwerman

DocuSign has admitted they were the victim of a data breach of customer email addresses only that has led to massive phishing attacks which used the exfiltrated DocuSign information. ...

WanaCry Ransomware Was Not The First To Use NSA's ETERNALBLUE

May 18, 2017 7:25:23 AM By Stu Sjouwerman

April 14th this year, The Shadow Brokers released a stolen zoo of NSA hacking tools. One of these was ETERNALBLUE, a Windows exploit using an outdated Microsoft network communications ...

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