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

Wendy’s to pay $50M in data breach settlement

Feb 20, 2019 10:23:49 AM By Stu Sjouwerman

Wendy’s has agreed to pay $50 million to settle negligence claims following its 2015-2016 data breach that affected more than 1,000 of the burger chain’s locations.

KnowBe4 Releases The 2019 What Keeps You up at Night Report

Feb 20, 2019 10:05:10 AM By Stu Sjouwerman

Today we released the results of new research: What Keeps You up at Night – the 2019 Report. The report looks at over 350 organizations across North America and reveals the security ...

New: "Targeted Training" Filter in KnowBe4 ModStore

Feb 20, 2019 9:44:27 AM By Stu Sjouwerman

Get your users the right training content, specific to their roles and departments. With the new “Targeted Training” filter in the KnowBe4 ModStore, you can easily find and assign ...

[Last Chance] Get an Insider View Into the Methods and Exploits of the World's Most Famous Hacker, Kevin Mitnick

Feb 19, 2019 11:30:50 AM By Stu Sjouwerman

CyberheistNews Vol 9 #8 Company Sues Employee After She Falls for USD 250K CEO Fraud Scam

Feb 19, 2019 9:36:38 AM By Stu Sjouwerman

Remote Access Credentials Are the Latest Malware Attack Target

Feb 18, 2019 2:38:44 PM By Stu Sjouwerman

The latest iteration of notable banking trojan, Trickbot, now includes a password grabbing module designed to provide cybercriminals with remote access to internal systems.

It’s Time to Have a Security Plan Around Consumer Data Privacy

Feb 18, 2019 2:33:39 PM By Stu Sjouwerman

The growth in both consumer concern and laws seeking to protect consumer data means organizations need to take specific measures to ensure the safeguarding of customer data.

Popular Torrents Uploader Caught Sharing ‘GandCrab’ Ransomware Strain

Feb 18, 2019 10:46:56 AM By Stu Sjouwerman

Torrent sites are banning CracksNow, a popular source of torrent uploads, after discovering that the uploader of cracks and keygens was distributing ransomware.

8-Character Windows NTLM Passwords Can Be Cracked In Under 2.5 Hours

Feb 17, 2019 8:15:08 AM By Stu Sjouwerman

BeauHD posted in Slashdot: "HashCat, an open-source password recovery tool, can now crack an eight-character Windows NTLM password hash in less than 2.5 hours. "Current password cracking ...

Iran indictments show even U.S. intelligence officials are vulnerable to basic phishing schemes

Feb 15, 2019 1:31:01 PM By Stu Sjouwerman

As the story broke about the charges against former U.S. Air Force intelligence specialist who defected to Iran and support targeted hacking against some of her former colleagues, one ...

U.S. Cities Remain at Risk of Cyber Attacks

Feb 14, 2019 7:39:59 PM By Stu Sjouwerman

Recent attacks on city governments have not only provided their attackers with revenue from scams, data breaches, and data held ransom, but have also drawn the attention of other ...

Business Email Compromise, Credential Theft, and Many Other Attack Vectors Surged as High as 5x in Q4 2018

Feb 14, 2019 11:30:32 AM By Stu Sjouwerman

The latest data from Proofpoint shows many types of cyberattacks making massive jumps in comparison to both previous quarters and years.

Cyberheist On Bank Causes Shutdown Of All Operations

Feb 14, 2019 8:51:11 AM By Stu Sjouwerman

Reuters reported that the Bank of Valetta, which accounts for almost half of Malta’s banking transactions, had to shut down all of its operations on Wednesday after hackers broke into its ...

New York State Education Department Proposes New Regulations to Strengthen PII Security

Feb 13, 2019 2:47:23 PM By Stu Sjouwerman

The new proposed amendments seek to protect the personally identifiable information for students and school personnel accessible by both educational agencies and contractors.

Bogus Security Alerts Aren’t From Norton

Feb 12, 2019 10:55:52 AM By Stu Sjouwerman

Con artists are targeting thousands of people with tech support scams that pose as security alerts from Norton Security, researchers at Symantec have found. The phony alerts pop up in the ...

Surge in Email-enabled Healthcare Fraud

Feb 12, 2019 10:49:51 AM By Stu Sjouwerman

Email fraud targeting healthcare professionals has spiked 453% over the past two years, according to a new report by Proofpoint. Proofpoint researchers tracked business email compromise ...

Company Sues Employee After She Falls For USD 250K CEO Fraud Scam

Feb 12, 2019 10:02:32 AM By Stu Sjouwerman

A woman is being sued for sending approx. 250K of her employer's cash to an online fraudster. Patricia Reilly, who was working for the UK Peebles Media Group fell for a CEO Fraud Scam ...

CyberheistNews Vol 9 #7 OUCH! Ransomware Attack Via MSP Locks Customers Out of Systems

Feb 12, 2019 9:42:04 AM By Stu Sjouwerman

You Have A Special Valentine's Day Message!

Feb 11, 2019 5:11:01 PM By Stu Sjouwerman

Another Home Buyer Falls Victim to a Business Email Compromise Scam

Feb 11, 2019 3:57:59 PM By Stu Sjouwerman

A man in Portland, Oregon lost $123,000 after falling victim to a real-estate scam, according to Michele Lerner at The Washington Post. In December, Aaron Cole and his family were about ...

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