KnowBe4 Blog

Keeping you informed. Keeping you aware.
Stay on top of the latest in human and agent security including social and prompt engineering, ransomware and phishing attacks.

Stu Sjouwerman

Founder and Executive Chairman

Stu Sjouwerman (pronounced “shower-man”) is the Founder and Executive Chairman 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.


Recent Posts

Dodging Digital Deception: How to Spot Fake Recruiters and Shield Your Career Search from Phishing Scams

Scammers are impersonating job-seeking platform Dice with phony employment opportunities designed to steal victims’ information.

Generative AI Results In 1760% Increase in BEC Attacks

As cybercriminals leverage tools like generative AI, making attacks easier to execute and with a higher degree of success, phishing attacks continues to increase in frequency.

The European Union's Unified Approach to Cybersecurity: The Cyber Solidarity Act

The construction of a more cyber resilient European Union (EU) took a remarkable step forward this past week as negotiators from the European Parliament and the European Council reached a ...

FBI's 2023 Internet Crime Report Highlights Alarming Trends on Ransomware

The specter of cybercrime continues to grow, with losses soaring to $12.5 billion in 2023, according to the recently released Internet Crime Report by the FBI's Internet Crime Complaint ...

AI and Ransomware Top the List of Mid-Market IT Cyber Threats

A recent report reveals a significant discrepancy in the priorities of mid-market IT departments when it comes to addressing cyber threats. It's somewhat ironic that IT professionals find ...

European Diplomats Targeted With Phony Invitations to a Wine-Tasting Party

Researchers at Zscaler observed a cyberespionage campaign that targeted European diplomats with malicious PDFs disguised as invitations to a wine-tasting party hosted by the Ambassador of ...

[On-Demand] Customer Spotlight: MESA’s Strategy for Building Strong Security Culture and Email Defense

In a world where digital threats grow more sophisticated by the day, gaining firsthand knowledge from those who have successfully bolstered their organization's defenses is invaluable.

New Research: Spike In DNS Queries Driving Phishing and Cyber Attacks

New analysis of DNS queries shows material growth in phishing, malware and botnets and offers insight into how many threats the average person experiences.

Chicago Man Sentenced to Eight Years in Prison for Phishing Scheme

A 30-year-old man from Chicago, Joseph Alexander Valdez, has been sentenced to eight years in prison for conducting a Snapchat phishing scheme that victimized more than 700 women, CBS ...