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

Forrester TEI Study Shows KnowBe4 Can Deliver a Customer ROI of 276% with a Less Than 3-Month Payback

KnowBe4 commissioned Forrester Consulting to conduct a Total Economic Impact™ (TEI) study, examining the potential Return on Investment (ROI) enterprises might realize by implementing the ...

Eavesdrop on the Back-and-Forth of Negotiating with a Criminal Ransomware Organization

Details around the recent successful ransomware attack on fashion retailer FatFace provide some insight into what you should expect when you become a victim.

Currently Popular Social Engineering Tactics

Criminals are exploiting new technology to launch updated versions of old attacks, according to Derek Slater at CSO. George Gerchow, CSO at Sumo Logic, told Slater that threat actors are ...

COVID-Related Phishing Attacks Return to Mid-Pandemic Heights

New data from Palo Alto Network’s Unit42 provides a wealth of insight into specifically how cybercriminals have leveraged COVID-related theming to ensure a successful phishing attack.

[INFOGRAPHIC] Q1 2021 Report Shows Users are More Savvy to COVID-19 Phishing Scams

KnowBe4's latest quarterly report on top-clicked phishing email subjects is here. These are broken down into three different categories: social media related subjects, general subjects, ...

[New Benchmarking Feature] Compare Your Organization’s Security Awareness Proficiency with Other Companies in Your Industry

We are excited to announce that the KnowBe4 Industry Benchmarking feature has been expanded to now include industry benchmark comparison data for Security Awareness Proficiency Assessment ...

2021 Phishing Trends Face Alarming Predictions and Will Likely Include Automated Attacks

Researchers at INKY warn that targeted phishing attacks will continue throughout 2021, as some employees return to the office and others continue working from home. They predict that ...

[HEADS UP] DocuSign Issues Alert of Malicious New Hacking Tool

Earlier this week, DocuSign issued an alert that notified users of a new hacking tool. This tool is imitating DocuSign so then the bad guys can drop malware into victims' systems.

H Layer Credentialing Announces Security Awareness and Culture Professional (SACP)® Certification

This is a very exciting development for the Cyber Security industry as a whole and particularly those of us that believe that Security Awareness Training is a critical step in a complete ...

Australian Organizations Increase Cyber Security Spend to Nearly A$5B in 2021

The rise in cyberattacks in Australia is seeing its natural result – organisations realizing the need to put more budget focused on cybersecurity, with the largest portion going towards ...