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 Amazing Thing Is that DHL Phishing Campaigns STILL Work

Researchers at Armorblox warn that a phishing campaign is impersonating DHL with fake shipping invoices.

Spear Phishing Campaign Targets Southeast Asia

Researchers at Group-IB are tracking a previously unknown threat actor dubbed “Dark Pink” that’s using spear phishing attacks to target government, military, and religious organizations. ...

Cybercriminals Mimic Victim Website to Publish Exfiltrated Data on the Public Web

In a new twist, threat actors use a typo squatted domain name to increase the chances that stolen data will be seen by the general public after not being paid the ransom.

Government, Higher Ed, School Districts, and Healthcare Continue to be Victims of Ransomware Attacks

An analysis of the publicly-accessible data on ransomware attacks shows that these sectors that were a primary target of ransomware in 2021 continued as targets in 2022 to the same degree.

Cyberinsurer Beazley Introduces a $45M Cyber Catastrophe Bond to Offset Risk

In a move designed to protect the insurer and allow for more cyber policies to be issued, this bond is new to cyberinsurance, but not to insurers as a whole.

KB4-CON 2023 Agenda is Now Available!

Exciting news! We just released our full conference agenda for KB4-CON 2023, happening April 24-26 in Orlando, Florida. We’ve brought back some of your favorite sessions and have some new ...

[INFOGRAPHIC] PhishER by the Numbers

PhishER, KnowBe4’s industry-leading Security Orchestration, Automation and Response (SOAR) platform, takes an otherwise complicated and inefficient threat management workflow and allows ...

[New Feature] Continuously Monitor for Any Detected Password Vulnerabilities Within Your User Base with PasswordIQ

We’re thrilled to announce that the power of KnowBe4’s most popular free password security tool has been brought to your KnowBe4 console as a new feature!

Check Point Software: "2022 Saw A Huge Rise In Cyberattacks"

Techradar reported that cyberattacks saw a significant rise in 2022, mostly due to the increase in organizations going virtual to combat the effects of the Covid-19 pandemic, and the rise ...