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

Exploiting Trust in reCAPTCHA

Researchers at Avanan warn that attackers are using reCAPTCHAs on their phishing sites to avoid detection by security scanners.

Published Zelenskyy Deepfake Video Demonstrates the Modern War is Online

The video uploaded to a hacked Ukrainian news website shows how far the technology has come, how it can be used in social engineering, as well as how the tech still needs to improve.

SMBs Are 350% More Likely to Experience Social Engineering Attacks Via Phishing

New data shows phishing, social engineering, and impersonation dominate as cybercriminals are becoming more frequent and successful with their attacks.

CyberheistNews Vol 12 #12 [New White House Alert] Train Your Users Against Threat of Russian Cyberattacks

[New White House Alert] Train Your Users Against Threat of Russian Cyberattacks Email not displaying? | View Knowbe4 Blog CyberheistNews Vol 12 #12 | Mar. 22nd., 2022 [New White House ...

[BREAKING] White House warns Russia is prepping possible cyberattacks against US

With the recent cyber-attacks between Russia and Ukraine and the current intelligence coming from the US Government, organizations want to shore up their defenses to reduce the risk of a ...

Chameleons Phish, Too

One of the challenges cyber criminals face is that their scams often have a relatively short shelf-life. Once they’ve been used, the gaff is quickly blown, and the scammers hope to ...

[Heads Up] New Evil Ransomware Feature: Disk Wiper if You Don't Pay

There is a new ransomware-as-a-service (RaaS) strain called LokiLocker, researchers at Blackberry warn. The malware uses rare code obfuscation and includes a file wiper component that ...

KnowBe4 Named a Leader in 2022 Forrester Wave for Security Awareness

We’re thrilled to announce that KnowBe4 has been named a Leader in The Forrester WaveTM : Security Awareness and Training Solutions, Q1 2022 report based on our current offering, strategy ...

Ransomware-Related Data Leaks Increase 82% as the Number of Cybercriminal Groups Nearly Triples

New insight into the state of the attacks and threats paints a picture where the cybercriminals are growing in number, sophistication and successes, while victims just sit back seemingly ...

Backups Become the Focus as Three-Fourths of Organizations Experienced Ransomware Attacks

New data puts the spotlight on how most organizations unable to completely recover their data after a ransomware attack, making the case for better data protection for improved incident ...