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

Sophisticated Phishing Campaign Attempts to Bypass SEGs

A widespread phishing campaign is attempting to steal credentials from employees working at dozens of organizations around the world, according to researchers at Group-IB.

Mobile Phishing Campaign Targets Job Seekers

Researchers at Zimperium warn that a phishing campaign is targeting Android phones to deliver the Antidot banking trojan.

Nearly Half a Billion Emails in 2024 Were Malicious

A new report from Hornetsecurity has found that 427.8 million emails received by businesses in 2024 contained malicious content.

Phishing Attacks Are Now Leveraging Google Ads to Hijack Employee Payments

Researchers at Silent Push warn that a phishing campaign is using malicious Google Ads to conduct payroll redirect scams.

Phishing Holds the Top Spot as the Primary Entry Point for Ransomware Attacks

New analysis of ransomware attacks shows that phishing is the primary delivery method and organizations need to offer more effective security awareness training to mitigate the threat.

Your KnowBe4 Compliance Plus Fresh Content Updates from November 2024

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

The 40% Rise of Phishing Attacks: How New Domain Extensions Are Fueling Cyber Crime

In recent years, the world of cybersecurity has witnessed a concerning trend: a significant increase in phishing attacks.

IRS Warns of Holiday-Themed Shopping Scams

The US Internal Revenue Service (IRS) has issued an advisory warning taxpayers to be on the lookout for holiday-themed shopping scams.

FBI Warns of Cybercriminals Using Generative AI to Launch Phishing Attacks

The US Federal Bureau of Investigation (FBI) warns that threat actors are increasingly using generative AI to increase the persuasiveness of social engineering attacks.