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

KnowBe4 Earns 2023 Top Rated Award from TrustRadius

We are proud to announce that TrustRadius has recognized KnowBe4 with a 2023 Top Rated Award.

[Finger on the Trigger] How the FBI Nuked Russian FSB's Snake Data Theft Malware

The Five Eyes member nations' cybersecurity and intelligence agencies dismantled the infrastructure of the Snake cyber-espionage malware that was operated by Russia's Federal Security ...

Q1 2023 Top-Clicked Phishing Report [INFOGRAPHIC]

KnowBe4's latest reports on top-clicked phishing email subjects have been released for Q1 2023. We analyze 'in the wild' attacks reported via our Phish Alert Button, top subjects globally ...

More InterPlanetary File System Services Use Also Means Phishing Abuse by Cybercriminals

The InterPlanetary File System (IPFS), a distributed file-sharing system that represents an alternative to the more familiar location-based hypermedia server protocols (like HTTPS), is ...

Dallas Police Department is the Latest Victim of a Ransomware Attack

Unfortunately ransomware attacks have taken another victim. The City of Dallas recently confirmed that their police department suffered a ransomware attack. This attack shutdown essential ...

Blocking Social Engineering by Foreign Bad Actors: The Role of the New Foreign Malign Influence Center

The U.S. government created a new office to block disinformation. The new Foreign Malign Influence Center (FMIC) oversees efforts that span U.S. military, law enforcement, intelligence, ...

[Eye Opener] HTML Phishing Attacks Surge by 100% in 12 Months

The Cyberwire reported: "Barracuda released a study this morning indicating that HTML attacks have doubled since last year.

[On-Demand] A Master Class on IT Security: Roger Grimes Teaches You Phishing Mitigation

Phishing attacks have come a long way from the spray-and-pray emails of just a few decades ago. Now they’re more targeted, more cunning and more dangerous. And this enormous security gap ...

Show Your C-Suite the ROI of Security Awareness Training with KnowBe4 Executive Reports

Do you spend too much time creating custom security awareness reports for your C-suite or board of directors? If so, we’re happy to share our new KMSAT feature, Executive Reports.

CNBC: Why Nearly 80% of Leaders are Increasing Cybersecurity Spend

According to a recent EY survey, nearly 80% of business leaders are increasing their cybersecurity investment in the next six to 12 months.