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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September Sees a 32% Increase in the Number of Ransomware Attacks in Just One Month

Oct 31, 2023 10:07:46 AM By Stu Sjouwerman

Continued analysis of ransomware attacks shows an upward trend in the number of attacks, with September resulting in the highest number of assaults so far this year.

Cybercriminal Group Octo Tempest and Its Menacing Phishbait

Oct 31, 2023 10:07:28 AM By Stu Sjouwerman

Microsoft is tracking a cybercriminal group called “Octo Tempest” that uses threats of violence as part of its social engineering and data theft extortion campaigns.

CyberheistNews Vol 13 #44 [Don't Get Trapped] The Dark History of Phishing and More Social Engineering

Oct 31, 2023 9:00:00 AM By Stu Sjouwerman

Exposed: Scam Artists Mimicking PepsiCo in Phishing Schemes

Oct 30, 2023 2:30:11 PM By Stu Sjouwerman

Researchers at INKY warn that a phishing campaign is attempting to distribute malware by impersonating PepsiCo.

The Outstanding ROI of KnowBe4's Security Awareness Training Platform

Oct 29, 2023 3:36:02 PM By Stu Sjouwerman

My name is Stu Sjouwerman. I’m the Founder and CEO of KnowBe4, my 5th startup. I have been in IT for 40+ years, the last 25 of those in information security.

New Amazon-Themed Phishing Campaign Targets Microsoft Live Outlook Users

Oct 27, 2023 11:43:25 AM By Stu Sjouwerman

Several months ago, Netskope Threat Labs uncovered a surge in PDF phishing attachments infiltrating Microsoft Live Outlook. These attacks were part of a larger series of phishing ...

[Live Demo] Customizing Your Compliance Training to Increase Effectiveness

Oct 27, 2023 8:15:00 AM By Stu Sjouwerman

Linking compliance training to specific outcomes is hard. Compliance training has a reputation for being challenging for organizations to offer, difficult to do right and employees are ...

Your KnowBe4 Fresh Content Updates from October 2023

Oct 27, 2023 8:00:00 AM By Stu Sjouwerman

Check out the 27 new pieces of training content added in October, alongside the always fresh content update highlights, events and new features.

Celebrating Cybersecurity Awareness Month with KnowBe4: Insights from Our Valued Customers

Oct 26, 2023 12:28:33 PM By Stu Sjouwerman

To celebrate Cybersecurity Awareness Month this year, KnowBe4 customers from various industries and backgrounds are sharing their innovative and exciting approaches to promote ...

Human-Crafted Phishing Emails Only Three Percent More Successful Than AI-Generated Ones, According To IBM

Oct 26, 2023 11:11:24 AM By Stu Sjouwerman

Red teamers at IBM X-Force warn that AI-generated phishing emails are nearly as convincing as human-crafted ones, and can be created in a fraction of the time. The researchers tricked ...

[On-Demand Webinar] The Role of AI in Email Security and How Real-Time Threat Intelligence Can Supercharge Your SOC Team

Oct 26, 2023 10:30:22 AM By Stu Sjouwerman

In response to improved email security measures, cybercriminals have pivoted to more advanced attack methods, namely artificial intelligence (AI), that bypass existing protections. But ...

[Live Demo] Ridiculously Easy Security Awareness Training and Phishing

Oct 26, 2023 8:00:00 AM By Stu Sjouwerman

Old-school awareness training does not hack it anymore. Your email filters have an average 7-10% failure rate; you need a strong human firewall as your last line of defense.

FBI Warns of North Korean Social Engineering Tactics and Recruitment/Hiring of IT Workers

Oct 25, 2023 2:29:42 PM By Stu Sjouwerman

The U.S. Federal Bureau of Investigation (FBI) and South Korea’s Ministry of Foreign Affairs have issued an advisory offering guidance to “the international community, the private sector, ...

Leadership Less Involved in Cyber-Preparedness Despite a Majority of Orgs Thinking Data Loss from a Cyber Attack Likely in the Next 12 Months

Oct 24, 2023 4:37:42 PM By Stu Sjouwerman

You probably expect executive leadership to not just support cybersecurity efforts, but to be involved. New data shows organizations have a way to go until this is a reality.

Security Awareness Training Blog

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Stu Sjouwerman

Books

Recent Posts

September Sees a 32% Increase in the Number of Ransomware Attacks in Just One Month

Cybercriminal Group Octo Tempest and Its Menacing Phishbait

CyberheistNews Vol 13 #44 [Don't Get Trapped] The Dark History of Phishing and More Social Engineering

Exposed: Scam Artists Mimicking PepsiCo in Phishing Schemes

The Outstanding ROI of KnowBe4's Security Awareness Training Platform

New Amazon-Themed Phishing Campaign Targets Microsoft Live Outlook Users

[Live Demo] Customizing Your Compliance Training to Increase Effectiveness

Your KnowBe4 Fresh Content Updates from October 2023

Celebrating Cybersecurity Awareness Month with KnowBe4: Insights from Our Valued Customers

Human-Crafted Phishing Emails Only Three Percent More Successful Than AI-Generated Ones, According To IBM

[On-Demand Webinar] The Role of AI in Email Security and How Real-Time Threat Intelligence Can Supercharge Your SOC Team

[Live Demo] Ridiculously Easy Security Awareness Training and Phishing

FBI Warns of North Korean Social Engineering Tactics and Recruitment/Hiring of IT Workers

Leadership Less Involved in Cyber-Preparedness Despite a Majority of Orgs Thinking Data Loss from a Cyber Attack Likely in the Next 12 Months

Most Organizations Believe Malicious Use of AI is Close to Evading Detection

Functionality Misuse from Multiple Legitimate Company Websites is the Latest Example of ‘Site Hopping’

One Out of Every Eight Emails Found to be Malicious as Attackers Continue to Hone Their Skills

Vietnam-Based Cyber Groups Using Fake Job Postings to Deliver Malware

CyberheistNews Vol 13 #43 Phishing Attacks Surge by 173% In Q3, 2023; Malware Threats Soar by 110%

A Brief History of Phishing, and Other Forms of Social Engineering

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