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

A Must See for KnowBe4 Customers and Partners: Geoff White to Keynote KB4-CON EMEA 2024

As a valued KnowBe4 customer and partner, we're thrilled to bring you exciting news about our upcoming KB4-CON EMEA 2024 in London.

North Korean Hackers Target Software Developers With Phony Coding Tests

Researchers at ReversingLabs warn that North Korea’s Lazarus Group is targeting software developers with phony job interviews.

SANS Releases Guide to Address Rise in Attacks on Manufacturing and Industrial Control Systems

Increased ransomware attacks on industrial control systems (ICS), mixed with general ICS insecurity found across the manufacturing sector, has given rise to a guide specifically ...

CyberheistNews Vol 14 #38 [CODE RED] A Must-See New Webinar: How To Block North Korean Infiltrators

Phishing Attack Takes a Two-Step Approach to Leverage Legitimate Sites and Evade Detection. [4-Minute Survey] Share Your Thoughts on AI in InfoSec With Me? Email not displaying? | View ...

New Ransomware Threat Group, RansomHub, is so Effective, the NSA is Already Warning You About Them

The latest evolution of the ransomware service model, RansomHub, has only been around since February of this year, but its affiliates are already successfully exfiltrating data.

BEC Scams Have Caused $55 Billion in Losses Over the Past Ten Years

Business email compromise (BEC) attacks have caused more than $55 billion in losses between 2013 and 2023, according to an advisory from the U.S. Federal Bureau of Investigation (FBI).

[4-Minute Survey] Share Your Thoughts on AI in InfoSec With Me?

Can you help me with your input? I'd love your thoughts about AI in InfoSec. This is a super short survey that asks about any AI tools you use or would like, how you feel about AI ...

Authorized Push Payment Fraud Responsible for Over Half of U.K. Frauds and Scams

Research from The Financial Ombudsman Service, a U.K. based organization dedicated to helping citizens with free financial advice, has found an increase in Authorized Pushed Payment (APP) ...

Attackers Using HTTP Response Headers to Redirect Victims to Phishing Pages

Researchers at Palo Alto Networks’ Unit 42 warn that attackers are using refresh entries in HTTP response headers to automatically redirect users to phishing pages without user ...

Your Lawyers Are Increasingly Targeted by Phishing Attacks, Ransomware

Researchers at Bitdefender warn that law firms are high-value targets for ransomware gangs and other criminal threat actors. Attackers frequently use phishing to gain initial access to an ...