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

43% of C-suite execs name cybersecurity as No. 1 operational challenge

Jul 20, 2017 3:42:28 PM By Stu Sjouwerman

A global survey over 400 C-suite execs by the management consulting firm A.T. Kearney showed that cybersecurity (43 percent) is the top operational challenge they faced. Also, a whopping ...

New Type Of WhatsApp Phishing Attack

Jul 20, 2017 1:34:26 PM By Stu Sjouwerman

Heads-up. There is a new social engineering attack currently being tested in Europe, and that means we will see it in America in the near future.

Ransomware attack on KQED TV, Radio Station wiped out pre-recorded segments

Jul 20, 2017 7:29:38 AM By Stu Sjouwerman

KQED, a TV and radio station in San Francisco, is an example that shows how badly any organization can suffer when ransomware hits their network. KQED has been trying to recover from the ...

Evil Corp Hires Criminal Hackers For Highly Targeted Ransomware Infections

Jul 19, 2017 5:47:53 PM By Stu Sjouwerman

So, here is something new...

A Single Extreme Cyberattack Could Cost the U.S. More than Hurricane Katrina

Jul 18, 2017 11:38:22 AM By Stu Sjouwerman

Lucinda Shen at Fortune wrote: "With an uptick in cyberattacks across the world, from WannaCry to Petya ransomware, a new report from banking heavyweight Lloyds of London warns just how ...

CyberheistNews Vol 7 #28 New. Your Complimentary Customized Automated Security Awareness Program: ASAP!

Jul 18, 2017 9:45:00 AM By Stu Sjouwerman

CyberheistNews | KnowBe4

The Hackers Smell Blood Now, Not Silicon

Jul 15, 2017 5:51:29 PM By Stu Sjouwerman

Steve Morgan wrote an excellent post with the Top 5 cybersecurity facts, figures and statistics for 2017 at the CSO site. These predictions and observations provide a 30,000-foot view of ...

Business Braces for More Ransomware Assaults

Jul 15, 2017 5:14:01 PM By Stu Sjouwerman

Baseline Mag has a great slide show with the results of an ISACA survey (Information Systems Audit and Control Association), a nonprofit group for IT and information systems ...

Cyber Security Pros Work Weekends And Still Feel Unprepared

Jul 15, 2017 10:30:39 AM By Stu Sjouwerman

Recent surveys by Farsight and Anomali find that 57% of InfoSec pros work weekends, and nearly a third of survey respondents noted they work on average 10-hour days, but also, one in ...

Two New Cybercrime-as-a-Service Platforms Discovered

Jul 15, 2017 9:13:27 AM By Stu Sjouwerman

There is a rising trend of cybercrime sites for wannabe "crims" that make malicious hacking a point-and-click exercise. A new report describes two more sites that were discovered by ...

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

Jul 14, 2017 5:33:06 PM By Stu Sjouwerman

KnowBe4 customers run millions of phishing tests per year, and we report at least quarterly on the latest top-clicked phishing email subjects so our customers know what the highest-risk ...

CyberheistNews Vol 7 #27 Scam of the Week: Phishing Moves to Smishing / and More News

Jul 10, 2017 9:25:34 AM By Stu Sjouwerman

Cleveland Medical Associates Ransomware Infection Caused 22K-Record Databreach - How To Prevent This

Jul 8, 2017 5:25:58 PM By Stu Sjouwerman

Cleveland Medical Associates is offering about 22,000 patients identity protection services after a ransomware attack against the practice. The practice is offering a year of protective ...

Scam Of The Week: Phishing Moves To Smishing

Jul 8, 2017 10:14:18 AM By Stu Sjouwerman

Cybercriminals are increasingly trying to circumvent your spam filters and instead are targeting your users directly through their smartphone with smishing attacks, which are hard to ...

UN Report Shows the Whole World Needs a Cybersecurity Upgrade. Oh, Really...

Jul 7, 2017 5:29:31 PM By Stu Sjouwerman

Joseph Steinberg at Inc. Mag wrote : "A UN report released this week shows that despite global awareness of the proliferation of cybercrime and cyber-spying, many nations - including some ...

Russians Are Suspects in Phishing Attacks Involving U.S. Nuclear Site

Jul 7, 2017 4:53:42 PM By Stu Sjouwerman

A report from the FBI and the US Department of Homeland Security warns of malware attacks targeting mainly nuclear power stations, and energy facilities. The attacks started May this ...

New Dark Web Site Offers Automated Social Engineering-As-A-Service

Jul 5, 2017 10:47:22 AM By Stu Sjouwerman

This Site Creates Robocalls to Steal People’s Credit Card PINs A June 30, 2017 post on Motherboard revealed a V1.0 of a site that does automated social engineering as a service, and has ...

KnowBe4 Makes It In The 18 Hottest Enterprise Startups Of 2017

Jul 5, 2017 9:50:07 AM By Stu Sjouwerman

Business Insider wrote: "We are half-way through 2017 and it's time to take stock of the hottest startups so far this year. For that we turned to Pitchbook, the website that tracks ...

KnowBe4 Reports Record Q2 2017 Performance

Jul 2, 2017 10:30:49 AM By Stu Sjouwerman

I am happy to report that the second quarter of 2017 was well over double that of Q2 last year, sales (bookings) was 232% compared to a year ago. This marks our 17th-straight quarter of ...

NotPetya "ransomware" Froze Business At Global Law Firm DLA Piper

Jun 30, 2017 8:57:03 AM By Stu Sjouwerman

Kate Fazzini and Adam Janofsky at the Wall Street Journal wrote an excellent piece about the dangers of becoming collateral in global cyber warfare. They wrote: "This week’s “Petya” ...

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