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 Massive Marriott Data Breach: Some Practical Advice For Business Travelers

If you have stayed in one or the following hotels in the last 4 years, it's very likely that your personal data—and even potentially your passport number—has been stolen and is available ...

Learning a 120K Lesson the Hard Way

The bank isn’t always responsible for making you whole after a business email compromise. Indiana’s Lake Ridge Schools lost more than $120,000 from a seven-million-dollar construction ...

Attackers Impersonate CEOs to Scam Employees into Sending Gift Cards for the Holidays

A crafty mix of social engineering, great timing, and context act as the perfect ingredients to trick unwitting users into buying gift cards and placing them into the hands of the ...

[Heads-up] Bad Guys Love Marriott: 500 Million Data Breach Is Phishing Heaven

So I guess we have just reached the tipping point, it's "privacy game over" for business travelers.

KnowBe4 Fresh Content Update & New Features November 2018

We've got a few content updates in the KnowBe4 Modstore to share with you for the month of November!

Employers Are Liable If They Don't Protect Employees' Sensitive Personal Information from Attack

A recent ruling from the Pennsylvania Supreme Court on an employee lawsuit against the University of Pittsburgh Medical Center stemming from a data breach should put all employers on ...

DNSpionage Malware Targets Domains in Lebanon and United Arab Emirates

A new threat actor is targeting Lebanon and United Arab Emirates (UAE) government domains, as well as a Lebanese airline company, according to Warren Mercer and Paul Rascagneres at Cisco ...

KnowBe4 Reached A Major 2018 Sales Milestone...

During the lunch hour, we had a plane buzzing our offices downtown Clearwater, check it out... You can click on the picture to see the video,,,

Reduce the Risk of Data Breach by Focusing on Compromised Credentials

The bad guys can’t do anything on your network without access. That’s why they focus their efforts on gathering as many sets of credentials as possible. You should focus there too.

Shadow IT is Alive and Well: One-Third of Employees Deploy Their Own Software

Employees see IT as an “inconvenience” and look for ways to get around security measures, putting the organization at risk, according to SailPoint’s 2018 Market Pulse Survey.