Stu Sjouwerman

Member Since 2021

Stu Sjouwerman

Founder, CEO

KnowBe4, Inc.

Tampa/St. Petersburg, Florida Area

Stu Sjouwerman (pronounced “shower-man”) is the founder and CEO of KnowBe4, Inc. [NASDAQ: KNBE], which hosts the world’s most popular integrated Security Awareness Training and Simulated Phishing platform, with 41,000 organization customers and more than 25 million users. A serial entrepreneur and data security expert with more than 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 2010. Stu is the author of four books, with his latest being “Cyberheist: The Biggest Financial Threat Facing American Businesses.” From 1996 through 2001, Stu was the Editor-In-Chief of WServer News, an email newsletter to 100,000+ IT system administrators helping them to keep their systems secure. Stu also served as editor of GFI Media Services which published four major online newsletters, including WServer News, WXP News, Win7 News, and GFI Security News. Along with his CEO duties, Stu is currently Editor-in-Chief of Cyberheist News, an e-zine tailored to deliver IT security news, technical updates and social engineering alerts to IT professionals.


  • Information Security
  • Internet Security
  • Network Security


October 15th, 2021

Six steps to a ransomware response plan

If attackers say they have copied your data, they are not bluffing.

September 22nd, 2021

What does the U.S. data breach bill mean for your organization?

We must all do our part for our own safety and in the interest of national security.

August 16th, 2021

5 ways compliance may undermine security

Compliance and security are two sides of the risk management coin. Here are some best practices to turn compliance into tangible security.

July 15th, 2021

Adapt key concepts of Biden's Executive Order to improve your cybersecurity

Here is a quick look at some of the key concepts in Biden’s order and what organizations can do to fulfill them and improve cybersecurity. 


KnowBe4, Inc.

KnowBe4 is a provider of the world’s most popular integrated new-school security awareness training and simulated phishing platform used by more than 37,000 organizations worldwide. KnowBe4 helps organizations address the human element of security by raising awareness of ransomware, CEO fraud and other social engineering tactics through a new-school approach to security awareness training. Kevin Mitnick, internationally recognized computer-security expert and KnowBe4’s Chief Hacking Officer, helped design KnowBe4’s training based on his well-documented social engineering tactics. Thousands of organizations leverage KnowBe4 to train their workforce to make smarter security decisions and create a human firewall as an effective last line of defense. KnowBe4 is headquartered in Tampa Bay, Florida and has offices in the UK, Holland, Germany, Dubai, Singapore, South Africa and Brazil.


  • Cyber Security
  • Information Technology
  • Corporate Training