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

[ALERT] NotPetya Is a Cyber Weapon, Not Ransomware

Jun 29, 2017 7:18:16 AM By Stu Sjouwerman

Yesterday morning, after monitoring this new outbreak for 24 hours, I came to the conclusion we were dealing with cyber warfare , and not ransomware . Two separate reports coming from ...

We Are Dealing With Cyber Warfare Here

Jun 28, 2017 6:57:59 AM By Stu Sjouwerman

OK, after 24 hours of monitoring this new Petya ransomworm outbreak, I am calling it. This has been brewing under the surface for a few years, but now we are dealing with open cyber ...

APWG Cybercrime Report: Phishers’ Command of Domain Name System Reaches All-Time High in 2016

Jun 27, 2017 1:21:07 PM By Stu Sjouwerman

Criminalization of DNS for Phishing Advanced Most Every Year Since 2012 CAMBRIDGE, Mass.-- The APWG's latest study has found that cybercriminals have been shifting their tactics markedly, ...

[ALERT] Looks Like A New Worldwide Ransomware Outbreak

Jun 27, 2017 10:55:25 AM By Stu Sjouwerman

Motherboard reported: "A quickly-spreading, world-wide ransomware outbreak has reportedly hit targets in Spain, France, Ukraine, Russia, and other countries. This strain is deadlier than ...

CyberheistNews Vol 7 #26 [HEADS UP] Ransomware Now Hits Linux - Web Hosting Provider Pays a Million

Jun 26, 2017 9:43:56 AM By Stu Sjouwerman

Scam Of The Week: Real Estate Wire Transfer Phishing Fraud

Jun 25, 2017 12:37:42 PM By Stu Sjouwerman

According to the NY Daily News, State Supreme Court Justice Lori Sattler was in the process of selling her apartment and buying another, when she received an email that seemed like it was ...

Security Awareness Training Can Lower Your Cyberinsurance Premium

Jun 25, 2017 10:15:33 AM By Stu Sjouwerman

New-school security awareness training might even pay for itself from Day 1! How? Call your cybersecurity insurance carrier or agent and specifically ask if you get a discount on the ...

Windows 10 Stops Ransomware Cold? Not So Fast!

Jun 25, 2017 8:46:11 AM By Stu Sjouwerman

Recently, Microsoft claimed that no known ransomware could penetrate the new Win10 Creators Update.

Global Cyber Alliance: "Few U.S. Hospitals Secure Their Email Against Phishing"

Jun 24, 2017 12:08:12 PM By Stu Sjouwerman

Shaun Waterman at the quite useful CyberScoop site wrote: "Fewer than one-third of the largest 98 public and private hospitals in the United States secure their email against phishing and ...

FBI: "Extortion And CEO Fraud Are The Top Online Fraud Complaints"

Jun 24, 2017 11:01:30 AM By Stu Sjouwerman

And victims aren't reporting ransomware attacks... Online extortion, tech support scams and phishing attacks that spoof the boss (CEO Fraud) were among the most damaging and expensive ...

July 4th and Current Events Phishing Templates

Jun 21, 2017 4:55:59 PM By Stu Sjouwerman

For KnowBe4 customers, we have some new templates available in Current Events and Holiday: Three July 4th-related templates in the Holiday category Five new Current Events templates ...

KnowBe4 Moves From #38 to #6 On Cybersecurity 500

Jun 21, 2017 11:34:20 AM By Stu Sjouwerman

The Cybersecurity 500 / Q2 2017 list of the world's hottest security companies was officially released June 21, 2017. In their press release they said: "Worldwide spending on ...

Web Hosting Provider Pays $1 Million to Ransomware Attackers

Jun 20, 2017 9:51:18 AM By Stu Sjouwerman

South Korean web hosting company Nayana agreed to pay $1 million in Bitcoin after a ransomware attack hit 153 Linux servers. The attack took place June 10 and resulted in over 3,400 ...

[BREAKING] Scam Of The Week: Your Politics Have Been Breached

Jun 19, 2017 8:25:40 PM By Stu Sjouwerman

Gizmodo reported on a blog post by IT Security company UpGuard which revealed the largest US voter data leak to date. Political data gathered on more than 198 million US citizens was ...

CyberheistNews Vol 7 #25 [ALERT] New Fileless, Code-Injecting Ransomware Bypasses Antivirus

Jun 19, 2017 9:42:17 AM By Stu Sjouwerman

KnowBe4 May 2017 New Training Modules Released

Jun 18, 2017 12:32:08 PM By Stu Sjouwerman

Here are the May releases, with an indication on the subscription levels which give access to these modules: For May we released the following: Common Threats (standalone module) - Level ...

[ALERT] New Fileless, Code-injecting Ransomware Bypasses Antivirus

Jun 18, 2017 11:59:32 AM By Stu Sjouwerman

Security researchers have discovered a new fileless ransomware in the wild, which injects malicious code into a legitimate system process (svchost.exe) on a targeted system and then ...

See Me On Video At The NYSE Cyber Investing Summit Pitching KnowBe4

Jun 18, 2017 9:52:46 AM By Stu Sjouwerman

The CyberWire wrote: Pitches: "Innovation from Young Companies The Pitch Panel was the Cyber Investing Summit's fast round of innovation pitches, moderated by Allegis's Bob Ackerman and ...

FIN10: Anatomy of a Ransomware Phishing Extortion Operation

Jun 17, 2017 2:39:47 PM By Stu Sjouwerman

Cyber security firm FireEye reported that that a number of Canadian mines and casinos were hacked by a group named FIN10 – FireEye labels FIN10 to be “one of the most disruptive threat ...

CIA Director Brennan: "Russia's Cyber Capability Increasingly Sophisticated And Not Bound By Law"

Jun 17, 2017 10:37:52 AM By Stu Sjouwerman

I was at the Gartner Security & Risk Management Summit at National Harbor, in DC this week. One of the keynotes was by CIA Director George Brennan, who was sworn in as director of the ...

Security Awareness Training Blog

View Topics