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

Analysis of Phishing Emails Shows High Likelihood They Were Written By AI

Jan 15, 2024 10:28:06 AM By Stu Sjouwerman

It’s no longer theoretical; phishing attacks and email scams are leveraging AI-generated content based on testing with anti-AI content solutions.

Women CyberSecurity Society Targeted by Smishing Campaign

Jan 15, 2024 8:23:44 AM By Stu Sjouwerman

The Canada-based Women CyberSecurity Society (WCS2) has warned that its leadership, members, and volunteers are being targeted by an SMS phishing (smishing) campaign, IT World Canada ...

Three-Quarters of Organizations Have Experienced Phishing Attack in the Last 12 Months

Jan 15, 2024 8:23:41 AM By Stu Sjouwerman

Regardless of whether your environment remains on-premise, resides in the cloud, or is a hybrid configuration, new data makes it clear that your biggest risk is phishing attacks.

[New Phishing Template] Formula 1 Exclusive: Gene Haas on Guenther Steiner's Departure

Jan 11, 2024 3:51:51 PM By Stu Sjouwerman

In a surprising turn of events for Formula 1 enthusiasts, the Haas F1 Team is grappling with the departure of its widely-respected Team Principal, Guenther Steiner. Let's dive into the ...

Microsoft Takes the Lead in Q4 2023 for Alarming Phishing Attempts

Jan 11, 2024 1:46:12 PM By Stu Sjouwerman

Microsoft was the most impersonated brand last quarter, accounting for a third (33%) of all brand phishing attempts in October, November, and December 2023, according to Check Point’s ...

FTC Issues Warning About the Dangers of QR Code-Based Scams

Jan 11, 2024 1:45:50 PM By Stu Sjouwerman

The latest consumer alert posted by the federal trade commission (FTC) signals that the upticks in QR code-based scams are being seen by cybersecurity vendors are indeed a valid growing ...

KnowBe4 Named a Leader in the Winter 2024 G2 Grid Report for Security Orchestration, Automation, and Response (SOAR)

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

We are excited to announce that KnowBe4 has been named a leader in the Winter 2024 G2 Grid Report for Security Orchestration, Automation, and Response (SOAR) for the PhishER platform for ...

Pikabot Malware Spreading Through Phishing Campaigns

Jan 10, 2024 2:52:40 PM By Stu Sjouwerman

Researchers at Trend Micro warn that a threat actor known as “Water Curupira” is distributing the Pikabot malware loader via widespread phishing campaigns.

KnowBe4 Named a Leader in the Winter 2024 G2 Grid Report for Security Awareness Training

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

We are thrilled to announce that KnowBe4 has been named a leader in the latest G2 Grid Report that compares security awareness training (SAT) vendors based on user reviews, customer ...

Cybercriminals Celebrate the Holidays with Dark Web Data Dumps, Dubbed “Leaksmas”

Jan 9, 2024 2:22:18 PM By Stu Sjouwerman

Millions of data records and GBs of data from organizations around the globe were made freely available to cybercriminals to coincide with dates around Christmas of 2023.

Red Flags for Phishing: Verizon Outlines Latest Scams to Watch Out For

Jan 9, 2024 9:24:06 AM By Stu Sjouwerman

Verizon has published an article outlining various forms of social engineering attacks, including SMS/text messaging phishing (smishing), voice phishing (vishing), and spear phishing ...

CyberheistNews Vol 14 #02 AI Breaks Free: New Insights Into The Latest Chatbot Jailbreak Hack

Jan 9, 2024 9:00:00 AM By Stu Sjouwerman

Guarding the Cloud: Top 5 Cloud Security Hacks and How You Can Avoid Them

Jan 9, 2024 8:00:00 AM By Stu Sjouwerman

Navigating the cloud security landscape is no walk in the park. It requires IT professionals like you to not only tackle traditional security threats, such as managing data access and ...

FBI Releases Blackcat Ransomware Decryption Tool to Victims, Disrupting Attacks

Jan 8, 2024 12:45:41 PM By Stu Sjouwerman

For the first time ever, the U.S. Justice Department announced the existence of an FBI-developed decryption tool that has been used to save hundreds of victim organizations attacked by ...

2024 Security Software Pricing Preference Survey

Jan 8, 2024 9:00:00 AM By Stu Sjouwerman

I need your help, I'm super interested to know what your current preferences are related to licensing and pricing models for security software. You may love or hate particular models and ...

Black Basta Ransomware Decryptor Released to Help Some Victims

Jan 5, 2024 1:19:14 PM By Stu Sjouwerman

A flaw found by security researchers in the encryption software allows victim organizations to use “Black Basta Buster” to recover some of their data – but there’s a catch.

Phishing Reigns as the Most Likely and Most Feared Cyber Attack

Jan 5, 2024 9:00:05 AM By Stu Sjouwerman

With over half of organizations being the victim of password-based attacks in the last year, new data sheds light on the risk of phishing attacks and the use of password-based credentials.

[LIVE DEMO] Are Your Users Making Risky Security Mistakes? Deliver Real-Time Coaching in Response to Risky User Behavior with SecurityCoach

Jan 5, 2024 8:00:00 AM By Stu Sjouwerman

Do you need an easy, automated way to provide real-time feedback the moment your users make risky mistakes to help reinforce the training campaigns you manage today?

AI-Powered Invoice Fraud: How This Latest Scam Hijacks Your Business Transactions

Jan 4, 2024 9:01:32 AM By Stu Sjouwerman

Resecurity is tracking a cybercriminal gang called “GXC Team” that develops and sells tools to facilitate online banking theft and social engineering attacks.

[Live Demo] Ridiculously Easy Security Awareness Training and Phishing

Jan 4, 2024 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.

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