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

Insurers are Warned of Cyber Risk Growth and are Provided a New Cyber Insurance Risk Framework from the New York Department of Financial Services

As cyberattacks continue to increase, cyber insurers are always looking for ways to manage the cyber risk they take on. The NY DFS offers some best practices from top insurance companies.

A Tale of Two Ransomware Variants: Two Ends of the Ransomware Attack Spectrum

Ransomware attacks are evolving much in the same way any saturated services market would, with specific targets, extortion techniques used, and customer experiences. Two new variants ...

FBI Warns that PYSA Ransomware is Targeting Schools

The FBI has warned of a wave of ransomware attacks against schools and other entities across the United States and the UK.

[NEW FEATURE] Enhance Your Users’ Learning Experience with Optional Learning

You asked, we listened! We are excited to introduce the new Optional Learning feature within your KnowBe4 platform. Optional Learning enables you to offer your users additional training ...

Mom Charged in Deepfake Cheerleading Plot

Raffaela Marie Spone, a 50-year-old mom from Pennsylvania, has been arrested after allegedly leveraging deepfake technology to target several of her daughter’s cheerleading rivals.

Researchers Have Their Eye on Malicious Clones of Android Apps That Put Devices at Risk

Researchers at Check Point have found malicious apps in the Google Play Store that will download Trojans to infected devices.

FBI Releases the Internet Crime Complaint Center 2020 Internet Crime Report, Losses Exceed $4.2 Billion

The FBI’s Internet Crime Complaint Center has released their annual report. The 2020 Internet Crime Report includes information from 791,790 complaints of suspected internet crime—an ...

[EYE-OPENER] USA CISA Advisory on Trickbot Campaigns: Phishing Training For Employees

March 17, 2021 — The Cybersecurity and Infrastructure Security Agency (CISA) and Federal Bureau of Investigation (FBI) have observed continued targeting through spear phishing campaigns ...

Ransomware Attacks Are Growing More Costly and Effective by the Day

The availability of commodity bots and ransomware is making the business of ransomware accessible to just about every. And, according to new data, everyone’s getting in on the game.

Cybercrime Officially Has Its Own Global Ecosystem

From Services, to Distribution, to Monetization, cybercriminals are getting so organized, cybersecurity experts are now beginning to see how vast the relationships and connections really ...