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

BEC Attacks Are Targeting Lower-Level Employees

A new report from Barracuda found that most business email compromise (BEC) attacks are now targeting employees who aren’t in executive or financial roles.

[On-Demand Webinar] Open Source Intelligence (OSINT): Learn the Methods Bad Actors Use to Hack Your Organization

The digital age has unleashed massive amounts of personal and organizational data on the internet. No breaking through firewalls or exploiting vulnerabilities required.

79% of Employees Have Knowingly Engaged in Risky Online Activities in the Past Year

With employees not believing that it’s important to personally worry about cyber security risks, they also tend to believe they’re not a target, new data suggest as the reason for the ...

You Knew It Would Eventually Happen: Ransomware Lawsuits

Organizations that have fallen victim to a ransomware attack are now being sued by impacted employees and customers alike who are citing loose cybersecurity was in place.

Egress: 73% of Orgs Were Victims of Phishing Attacks in the Last Year

A survey sponsored by Egress found that 94% of organizations suffered insider data breaches over the past year. The survey offers the following results:

Ransomware Extortion Attacks Continue to Rise in Frequency as Ransom Payments Decrease by 40%

Ransomware is having a very odd second quarter of the year as new variants enter the game governments finally take notice and insurers tighten their underwriting requirements.

Phishing Attacks Target IT Professionals More Than Any Other Organizational Role

New data from security vendor Ivanti suggests that cybercriminals are focusing in on those in IT roles as targets of phishing attacks, with many admitting to falling victim for these ...

How Social Engineers Use Social Media

People need to be aware of how their social media posts can be used against them, according to Darren Millar, senior vice president of operations at PiiQ Media. In an article for ...

[HEADS UP] Microsoft Warns of Sneaky Phishing Campaign

Microsoft's Security Intelligence team recently sent an alert to Office 365 users and admins to watch out for a suspicious phishing email that uses spoofed sender addresses.