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

Ninety-Four Percent of Organizations Sustained Phishing Attacks Last Year

A survey by Egress has found that 94% of organizations were hit by phishing attacks in 2023, Infosecurity Magazine reports. Additionally, 91% of firms experienced data loss and ...

Malicious APKs Drain Bank Accounts

A phishing campaign is targeting Chinese users in an attempt to distribute malicious apps, according to researchers at Palo Alto Networks’s Unit 42.

Cryptocurrency Drainer Distributed Through Phishing

Mandiant has published a report on “CLINKSINK,” a cryptocurrency Drainer-as-a-Service (DaaS) that’s targeting users of the Solana currency.

LinkedIn is Being Used for *Dating* – It’s a Recipe for Disaster

A new article explains how business professionals are beginning to be not-so-professional and seeking to make personal connections. It’s only a matter of time before cybercriminals jump ...

Women CyberSecurity Society Targeted by Smishing Campaign

The Canada-based Women CyberSecurity Society (WCS2) has warned that its leadership, members, and volunteers are being targeted by an SMS phishing (smishing) campaign, IT World Canada ...

Three-Quarters of Organizations Have Experienced Phishing Attack in the Last 12 Months

Regardless of whether your environment remains on-premise, resides in the cloud, or is a hybrid configuration, new data makes it clear that your biggest risk is phishing attacks.

[New Phishing Template] Formula 1 Exclusive: Gene Haas on Guenther Steiner's Departure

In a surprising turn of events for Formula 1 enthusiasts, the Haas F1 Team is grappling with the departure of its widely-respected Team Principal, Guenther Steiner. Let's dive into the ...

Microsoft Takes the Lead in Q4 2023 for Alarming Phishing Attempts

Microsoft was the most impersonated brand last quarter, accounting for a third (33%) of all brand phishing attempts in October, November, and December 2023, according to Check Point’s ...

FTC Issues Warning About the Dangers of QR Code-Based Scams

The latest consumer alert posted by the federal trade commission (FTC) signals that the upticks in QR code-based scams are being seen by cybersecurity vendors are indeed a valid growing ...