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

Warning: Sharing Data with ChatGPT Can Be Misused Outside Your Organization

A new study found that ChatGPT can accurately recall any sensitive information fed to it as part of a query at a later date without controls in place to protect who can retrieve it.

Verification and Deepfake Fraud Trends in North America

Forced verification fraud and deepfake fraud are on the rise in the US and Canada, according to researchers at Sumsub. Pavel Goldman-Kalaydin, Sumsub’s Head of AI & ML, explains that ...

CyberheistNews Vol 13 #22 [Eye on Fraud] A Closer Look at the Massive 72% Spike in Financial Phishing Attacks

CyberheistNews Vol 13 #22 | May 31st, 2023 [Eye on Fraud] A Closer Look at the Massive 72% Spike in Financial Phishing Attacks With attackers knowing financial fraud-based phishing ...

Spear Phishing Trends in 2023

50% of organizations surveyed were victims of spear phishing attacks in the last twelve months, according to a new report from Barracuda. The report also found that, on average, ...

Russian Ransomware Cybercriminal Behind $200 Million in Damages is Sanctioned by the U.S. Government

The U.S. Department of the Treasury’s Office of Foreign Assets Control (OFAC) has identified and designated Mikhail Matveev for his role in ransomware attacks back 2021.

AI Voice-Based Scams Rise as One-Third of Victims Can’t Tell if the Voice is Real or Not

As audio deepfake technology continues to go mainstream as part of the evolution in AI-based tools, new data shows there are plenty of victims and they aren’t prepared for such an attack.

The Bookmark Trap: How Discord Admins Fell Prey to Social Engineering

Brian Krebs wrote: "A number of Discord communities focused on cryptocurrency have been hacked this past month after their administrators were tricked into running malicious Javascript ...

[EPIC AI FAIL] Lawyer cites fake cases invented by ChatGPT

Found this highly amusing article: Legal Twitter is having tremendous fun right now reviewing the latest documents from the case Mata v. Avianca, Inc. (1:22-cv-01461). Here’s a neat ...

“Magic Link” Phishing Attacks Scamming Users With Fake McAfee Renewals

Threat actors are using encoded phishing links to evade security filters, according to Jeremy Fuchs at Avanan. The phishing emails purport to be notifications from McAfee informing the ...

[Mastering Minds]  China's Cognitive Warfare Ambitions Are Social Engineering At Scale

As the world continues to evolve, so does the nature of warfare. China's People's Liberation Army (PLA) is increasingly focused on "Cognitive Warfare," a term referring to artificial ...