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

[Heads-up] Double Trouble: Ransomware And File Thief Combined In Nasty Hybrid Malware

A new malware attack has been detected in the wild. This nasty combines two known pieces of malware: the Vidar data harvesting malware followed by GandCrab ransomware.

International Legal Tech Association: "KnowBe4 Is The Biggest Winner In Awareness Content"

The International Legal Technology Association is the premier peer-driven association for technologists in the legal field. The ILTA's most prestigious publication each year is their ...

KnowBe4’s Q4 2018 Year-Over-Year Sales Grow More Than 60%!

I'm excited to announce our incredible year-over-year Q4 2018 sales increase, growing more than 60% over Q4 2017's sales, breaking all records, and customer accounts now just under the ...

Air Force Targets Their Own Staff with a “Threat Emulation” to Understand Their Cyber Awareness and Readiness

The U.S. Air Force’s Cyber division used spear-phishing tactics to test whether airmen can proficiently recognize and avoid email-based attacks.

Judge Calls for County Officials to Resign After Falling Victim to a $500K CEO Fraud Scam

Months after a classic fraud scam took Galveston County for $525,000, County Judge Mark Henry is now asking for the County Auditor and Purchasing Agent to resign.

Easy Hacker Targets: Bad Password, IoT Devices, and no 2FA. Let's Make It Harder In 2019!

Without proper security controls, compromising an IoT device is easy work for hackers, giving them access to potentially more than just the device. Let's make it harder for them in 2019!

What Value Do Customers See In The KnowBe4 Platform?

Someone at Spiceworks asked: "I know there are discussions of Company Phishing Campaigns and Security Awareness Training, curious what everyone uses other than KnowBe4. I have been ...

[Heads-up] North Korean Ransomware Attack Disrupts Major U.S. News Media

It was all over the news. A server outage at a major newspaper publishing company on Saturday that prevented the distribution of many leading U.S. newspapers, including the Wall Street ...

2018: The Year of the Data Breach Tsunami [INFOGRAPHIC]

Our friends at Malwarebytes wrote: "It’s tough to remember all of the data breaches that happened in 2018. But when you look at the largest and most impactful ones that were reported ...