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

Spoofing-as-a-Service Site Taken Down

Law enforcement authorities across Europe, Australia, the United States, Ukraine, and Canada have taken down a popular website used by cybercriminals to impersonate major corporations in ...

Quiet Quitting Can Potentially Lead to Insider Security Risks

The phenomenon known as “quiet quitting,” in which employees become disengaged from their work while formally remaining in their jobs, can lead to serious security risks, according to Tim ...

Merriam-Webster has announced "gaslighting" as the 2022 word of the year

Merriam-Webster has announced "gaslighting" as the 2022 word of the year. One definition of gaslighting is "to manipulate (someone) into believing that he or she is going insane or that ...

[New App] Empower Your Users to Engage with Security Awareness and Compliance Training Anytime, Anywhere with the KnowBe4 Learner App

We’re excited to introduce a new way for your users to engage with KnowBe4 security awareness and compliance training anytime and anywhere with the KnowBe4 Learner App. And the best part? ...

There’s No Such Thing as a Free Yeti, Only Social Engineering Tactics

It’s easy to think of the typical online holiday scam as something that affects mostly individuals. Sad, maybe, and unfortunate, but not something that might seriously threaten a ...

WhatsApp data breach sees nearly 500 million user records up for sale

Craig Hale at Techradar reported: "A post on a “well-known hacking community forum” claims almost half a billion WhatsApp records have been breached and are up for sale.

[Send This To Your Users] 5 Top Scams To Watch Out For This Holiday Season

Here is a 3-minute article that we suggest you copy/paste and send to all your users as part of your ongoing security culture campaign. "The holiday season is a time when people are ...

Cybersecurity incidents cost organizations $1,197 per employee, per year

This statistic is alarming and underscores the importance of having a robust cybersecurity program in place. According to the Ponemon Institute, the average cost of a data breach is $3.8 ...

A Recent, Complex, Ransomware Campaign

Microsoft has observed a threat actor that’s been running a phishing campaign since August 2022. The threat actor, which Microsoft tracks as “DEV-0569,” is using phishing emails to ...