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

Your KnowBe4 Fresh Content Updates from November 2024

Check out the 84 new pieces of training content added in November, alongside the always fresh content update highlights, events and new features.

Malicious Google Ads Target Users Seeking Solutions to Printer Problems

Scammers are abusing Google ads to target users searching for help with printer problems, according to researchers at Malwarebytes.

Phishing Attacks Impersonating Big Brands Start to Zero in on Just One Brand

The latest data on brand phishing trends shows one brand dominating quarter over quarter, but also continuing to take on a larger share of the brand impersonation.

China Threat Actor Targets Individuals and Entities in Japan Via Spear Phishing Campaign

Researchers at Trend Micro warn that the China-aligned threat actor Earth Kasha has launched a new spear phishing campaign targeting individuals and organizations in Japan.

Cruel Year-End Twist: When Fake Firing Is A Real Phishing Attack

Cybercriminals are constantly evolving their tactics to exploit our vulnerabilities. A recent phishing campaign has taken this to a new low, preying on people's fear of job loss to trick ...

[NEW PRODUCT]: KnowBe4’s AIDA: Revolutionizing Security Awareness Training with AI-Powered Automation and Personalization

Technological advances in artificial intelligence (AI) are only making the ongoing problem of social engineering worse.

Malicious Loan Apps Target Android Users in Africa, South America and Asia

Researchers at McAfee warn of a surge in malicious loan apps targeting Android users across South America, Southern Asia, and Africa.

Nearly Every Hacker Believes AI Tools Have Created a New Attack Vector

A new survey of hackers shows that AI is not only empowering hackers to be more effective, but that AI itself is “ripe for exploitation.”

75% of Black Friday Spam Emails Are Scams

Three out of four Black Friday-themed spam emails are scams, according to researchers at Bitdefender. Most of these scams are targeting users in the US and Europe.