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

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[Heads Up] Tricky Fake Invoice Phishing Attack Uses Search to Deliver Malware

Jun 17, 2024 3:16:07 PM By Stu Sjouwerman

Researchers at Trustwave warn that a phishing campaign is distributing malware via HTML attachments disguised as invoices. Notably, the HTML files abuse the Windows Search protocol to ...

No Politician Too Small: School Board Candidates Targeted By Phishing and BEC Scams

Jun 17, 2024 3:15:49 PM By Stu Sjouwerman

Cybercriminals are broadening their targets to include even local political candidates, as an escalating series of phishing attacks was recently directed at school board candidates in ...

Microsoft and KnowBe4 Collaborate on Ribbon Phish Alert Button for Outlook

Jun 17, 2024 8:00:00 AM By Stu Sjouwerman

Increasing phishing attacks are a constant threat to organizations, making it crucial for users to report suspicious emails.

Unmasking the Threat: Why Phishing Scams are Surging in Japan

Jun 15, 2024 10:11:49 AM By Stu Sjouwerman

Japan has a large number of Forbes Global 2000 corporations--more than the UK, Germany, and France combined. Despite this economic strength, Japan faces an alarming and growing threat ...

Phishing Campaign Targets Job Seekers With WARMCOOKIE Backdoor

Jun 14, 2024 3:47:55 PM By Stu Sjouwerman

A phishing campaign is impersonating recruiting firms to target job seekers with a new strain of malware, according to researchers at Elastic Security.

Cybercriminals Use New V3B Phishing Kit to Mimic 54 Different Banks in the European Union

Jun 13, 2024 2:32:39 PM By Stu Sjouwerman

A new phishing-as-a-service toolkit that leverages credential interception and anti-detection capabilities has put EU banks at severe risk of fraud.

New Research Shows An Alarming Trend of Phishing Attacks Doubling For US and European Organizations

Jun 12, 2024 3:25:33 PM By Stu Sjouwerman

Cybercriminals never sleep, and their aim keeps getting better. According to new research from Abnormal Security, phishing attacks targeting organizations in Europe shot up by a ...

Beware: Major AI Chatbots Now Intentionally Spreading Election Disinformation

Jun 11, 2024 11:54:33 AM By Stu Sjouwerman

Just when you thought the disinformation landscape couldn't get any worse, a new report from Democracy Reporting International in Europe reveals that popular AI chatbots have started ...

Sinister "More_eggs" Malware Cracks Into Companies by Targeting Hiring Managers

Jun 11, 2024 11:54:29 AM By Stu Sjouwerman

Job seekers, beware - cybercriminals have a nasty new way to slide their malicious code on corporate networks. Researchers have uncovered a devious phishing campaign that's distributing ...

CyberheistNews Vol 14 #24 [NEW 2024 RESEARCH] Reveals that 34% of Green Users Will Fail a Phishing Test

Jun 11, 2024 9:00:00 AM By Stu Sjouwerman

DarkGate Malware Being Spread Via Excel Docs Attached To Phishing Emails

Jun 11, 2024 8:00:00 AM By Stu Sjouwerman

A phishing campaign is spreading the DarkGate malware using new techniques to evade security filters, according to researchers at Cisco Talos.

New HR-Themed Credential Harvesting Phishing Attack Uses Legitimate Signature Platform Yousign

Jun 11, 2024 8:00:00 AM By Stu Sjouwerman

A new phishing campaign is exploiting the eSignature platform Yousign.

Bruce Schneier: "AI Will Increase the Quantity—and Quality—of Phishing Scams"

Jun 11, 2024 6:49:00 AM By Stu Sjouwerman

Wow. It does not happen often that the godfather of infosec comes out this strong about phishing risks. He co-published new research in the Harvard Business Review May 30, 2024, which in ...

Everything You Can Do to Fight Social Engineering and Phishing

Jun 10, 2024 8:00:00 AM By Stu Sjouwerman

Social engineering and phishing are not just IT buzzwords; they are potent threats capable of devastating damage to your organization.

[New Feature] Find Out if They've Got a Bad Reputation in Record Time with PhishER Plus Threat Intel

Jun 10, 2024 8:00:00 AM By Stu Sjouwerman

The PhishER Plus platform just got smarter with the addition of the new PhishER Plus Threat Intel feature that integrates web reputation data into the PhishER Plus console.

Nearly Three-Quarters of Organizations Were the Target of Attempted Business Email Compromise Attacks

Jun 7, 2024 2:20:40 PM By Stu Sjouwerman

New data highlights just how dangerous Business Email Compromise attacks are.

Minnesotans Targeted by Scammers With Phony Arrest Warrants

Jun 7, 2024 8:14:43 AM By Stu Sjouwerman

The Minnesota Judicial Branch has issued an advisory warning that scammers are messaging Minnesotans with phony arrest warrants for missing jury duty.

“Operation Endgame” Ends with the Arrest of 4 Cybercriminal Suspects and 100 Servers

Jun 6, 2024 8:27:15 AM By Stu Sjouwerman

Coordinated efforts between law enforcement agencies across nine countries has resulted in a major disruption of a threat group’s malware and ransomware operations.

26% of Global Organizations Lack Security Training Programs

Jun 6, 2024 8:26:39 AM By Stu Sjouwerman

More than a quarter (26%) of organizations around the world provide no security awareness training for their employees, according to a survey by Hornetsecurity. The researchers found that ...

Best Buy/Geek Squad Impersonation Scams Surged in 2023

Jun 4, 2024 1:14:20 PM By Stu Sjouwerman

The US Federal Trade Commission (FTC) has found that Best Buy, and its tech support subsidiary Geek Squad, were the most commonly impersonated brands by scammers in 2023.

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