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

The U.K.'s NCSC and U.S. FBI Warn of Iranian Spear-Phishing Attacks

The U.K.’s National Cyber Security Centre (NCSC) and the U.S. FBI have released an advisory warning of Iranian state-sponsored spear-phishing attacks targeting “individuals with a nexus ...

Dick’s Sporting Goods Cyber Attack Underscores Importance of Email Security and Internal Controls

The recent cyber attack on Dick's Sporting Goods makes it clear that email played a critical role and emphasizes the need for better security controls.

[Wake-Up Call] Senator Falls Victim to Deepfake Scam—Are Your Users Next?

When technology blurs the lines between reality and fiction, a recent incident involving U.S. Senator Ben Cardin serves as a stark reminder of the growing threat posed by deepfake scams.

Threat Actors Behind MFA Bypass Service ‘OTP Agency’ Plead Guilty to Fraud

The criminal prosecution of the threat actors behind the "OTP Agency" has highlighted an ingenious new tactic that cybercriminals can use to bypass multi-factor authentication.

New Survey Shows 40% of Respondents Never Received Cybersecurity Training From Their Employer

Yubico has published a survey of 20,000 people from 10 countries around the world, finding that 40% of respondents have never received cybersecurity training from their employer.

The Number of Ransomware Attacks Around the World Increased by 73% in 2023

The number of ransomware attacks around the world increased by 73% in 2023, according to a new report by the Institute for Security and Technology’s Ransomware Task Force (RTF). These ...

Your KnowBe4 Compliance Plus Fresh Content Updates from September 2024

Check out the September updates in Compliance Plus so you can stay on top of featured compliance training content.

Scammers Use QR Code Stickers to Target UK Motorists

Netcraft warns that scammers are posting QR code stickers on parking meters in the UK and other European countries.

Your KnowBe4 Fresh Content Updates from September 2024

Check out the 40 new pieces of training content added in September, alongside the always fresh content update highlights, events and new features.