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

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 ...

Did WannaCry Ransomware Escape North Korean Containment?

Jun 17, 2017 9:00:08 AM By Stu Sjouwerman

Mike Mimoso at Kaspersky's Threatpost blog raised the theory that the ransomware wasn’t contained properly and spread before it was meant to be unleashed. Malware expert Jake Williams, ...

Southern Oregon University Lost $1.9 Million Due To CEO Fraud

Jun 15, 2017 11:32:31 AM By Stu Sjouwerman

Mail Tribune reported that Southern Oregon University is just the latest victim of CEO fraud (which the FBI calls Business Email Compromise or BEC) after hackers tricked university ...

ICO less likely to issue fines for data breaches if they show staff training

Jun 14, 2017 11:46:57 AM By Stu Sjouwerman

The UK's Information Commissioner's Office has said that in the event of a data breach it would be less likely to issue a monetary penalty to charities which had taken “reasonable steps” ...

CyberheistNews Vol 7 #24

Jun 12, 2017 9:42:13 AM By Stu Sjouwerman

This Ransomware Targets HR Departments With Fake Job Applications

Jun 10, 2017 2:51:40 PM By Stu Sjouwerman

I missed this one a few months ago, but it's a great example how focused the bad guys are getting with their attacks, and you need to watch out for this social engineering attack vector ...

Windows 10 Stops Ransomware Cold... Or Does It?

Jun 10, 2017 10:54:47 AM By Stu Sjouwerman

OK, finally there is some good news in the fight against ransomware!

New PowerPoint Social Engineering Attack Installs Malware Without Requiring Macros

Jun 9, 2017 6:38:08 AM By Stu Sjouwerman

Researchers at Security firm SentinelOne reported that a group of hackers is using malicious PowerPoint files to distribute 'Zusy,' a banking Trojan, also known as 'Tinba' (Tiny Banker). ...

Federal Contractor? Insider Threat Training Deadline June 1- Don't Lose Your Clearance

Jun 7, 2017 4:38:21 PM By Stu Sjouwerman

Insider Threat Training Requirement for US Gov't Contractors (Deadline May 31, 2017) SANS just alerted US federal contractors that wish to maintain their clearances must have completed an ...

ITIC / CyberheistNews Top 10 IT Security Recommendations May 2017

Jun 7, 2017 11:06:37 AM By Stu Sjouwerman

By Laura DiDio There is no such thing as a 100% fully secure environment. And there never will be. Security is not static; it is an ongoing work in progress. Organizations must be ...

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