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

EU to Declare Cyber-Attacks “Act of War”. USA likely to follow

Nov 2, 2017 1:45:50 PM By Stu Sjouwerman

"European Union member states have drafted a diplomatic document which states serious cyber-attacks by a foreign nation could be construed as an act of war. The document, said to have ...

Is combosquatting a new trick hackers use to lure users into visiting malicious websites?

Nov 1, 2017 7:30:11 AM By Stu Sjouwerman

Georgia Tech researchers reported that hackers are using a technique identified with a newly coined term "combosquatting" to trick users into visiting malicious websites. Sorry to break ...

KnowBe4 Halloween 2017 Was A Blast

Oct 31, 2017 1:24:01 PM By Stu Sjouwerman

Well over 350 employees dressed up and everyone was amazed at the amount of creativity that went into the costumes and the offices. Here is a group shot at the Station Square Park in ...

Putin Uses Psychiatrists For Social Engineering Attacks Against Individual Targets

Oct 30, 2017 7:20:36 AM By Stu Sjouwerman

Newsweek cross-posted an article that first appeared on The Daily Signal, and this is extremely relevant to what we are battling here today. Kiev, Ukraine—Since 2014, Russia has used ...

KnowBe4 Recognized as a Leader in the Gartner Magic Quadrant

Oct 27, 2017 10:44:17 AM By Stu Sjouwerman

KnowBe4 has been positioned by Gartner, Inc. in the Leaders quadrant of the Magic Quadrant for Security Awareness Computer-Based Training for the second year in a row. Gartner's ...

Worldwide Bad Rabbit Ransomware Outbreak Starts With Social Engineering

Oct 24, 2017 8:05:15 PM By Stu Sjouwerman

Organizations in Russia, Ukraine and a few hours later also the U.S. are under siege from Bad Rabbit , a new strain of ransomware which is basically a new, improved NotPetya version 2, ...

Hackers Target Nation’s Schools

Oct 24, 2017 11:16:53 AM By Stu Sjouwerman

Tawnell D. Hobbs at the Wall Street Journal wrote: "Hackers looking to exploit sensitive information for profit are increasingly targeting the nation’s schools, where they are finding a ...

Fancy Bear Goes Phishing For DC Cybersecurity Conference Attendees

Oct 24, 2017 10:49:52 AM By Stu Sjouwerman

Want to target a large swath of cybersecurity professionals in one go? Just crash their "cyber" party with a decoy document. So goes the modus operandi for an advanced persistent threat ...

CyberheistNews Vol 7 #42 U.S. warns about phishing attacks on nuclear, energy, aviation, water, and manufacturing industries

Oct 24, 2017 9:36:26 AM By Stu Sjouwerman

Goldman Sachs Invests 30 Million Dollars in KnowBe4

Oct 24, 2017 7:04:33 AM By Stu Sjouwerman

I have some exciting news for you today. Goldman Sachs believes in our mission, has invested in us, and is now on our board of directors. Another announcement with some more excellent ...

U.S. warns about phishing attacks on nuclear, energy, aviation, water, and manufacturing industries

Oct 23, 2017 7:26:23 AM By Stu Sjouwerman

(Reuters) — The U.S government issued a rare public warning that sophisticated hackers are targeting energy and industrial firms, the latest sign that cyber attacks present an increasing ...

Seagate Gets Initial OK For 5.7 Million Employee W-2-Phishing Settlement

Oct 22, 2017 10:47:14 AM By Stu Sjouwerman

A California federal judge gave his initial blessing Thursday to Seagate Technology LLC’s settlement that includes services valued at 5.75 million dollars and resolves class-action ...

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 ...

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