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

New York State Warns of Credential Stuffing

New York Attorney General Letitia James has released a guide to help businesses defend themselves against credential stuffing attacks. Credential stuffing is a type of brute-force attack ...

Cryptocurrency Scam Profits Jump 81% in 2021 to $7.7 Billion

Despite a drop in crypto scams in 2020 due to the pandemic, a new report highlights the massive growth in crypto scams… and the profitable results they’re yielding.

Reducing Stress with CBD Is the Latest Theming for Phishing Attacks

Spanning three languages and at least 15,000 unique phishing emails, this latest phishing campaign targets stressed out workers in the U.S. and France, avoiding detection and promising to ...

Copyright Infringement Notice to Instagram Users Serves as Newest Phishbait

Scammers are sending phony accusations of copyright infringement to Instagram users in a new phishing attack, Paul Ducklin writes at Naked Security. The scammers are taking advantage of ...

Shoulder Surfing is Still a Thing for Successful Social Engineering Attacks

Social engineering isn’t concerned with either novelty or elegance. All that matters is whether it works. ESET’s Jake Moore described a case in point for We Live Security: all someone ...

2023 Resolution: "I'll Be A Certified Security Awareness and Culture Professional (SACP)™"

Your organization's cyber threat landscape is changing lightning fast. So, your security awareness skills need to stay razor sharp, and are increasingly viewed as critical to protect your ...

Amazon Token Crypto “Presale” Scam Takes Advantage of News Hype and Steals Your Real Cryptocurrency

The growing interest in new cryptocurrencies and the potential to get in early on Amazon’s supposedly forthcoming crypto has scammers taking victims for thousands of dollars.

New “Karakurt” Threat Group is Gaining Attention Through Multiple and Frequent Extortion Attacks

A new warning from Accenture Security highlights this new cybercriminal group making waves that focuses on a "data breach and extortion” MO rather than relying on ransomware.

Omicron-Themed Phishing Campaign is Running Rampant

A mean-spirited phishing campaign is mocking victims after infecting their devices with Dridex malware, according to Lawrence Abrams at BleepingComputer.