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

U.K. Snack Manufacturer Expects Months of Delays After Ransomware Attack

Orders of top-selling snack brands from KP Snacks are on hold in the aftermath of a Conti ransomware attack that includes data theft of confidential information.

Your KnowBe4 Fresh Content Updates from January 2022

Check out the 20 new pieces of training content added in January, alongside the always fresh content update highlights and new features.

Web Trackers Collect Much More Info About Your Users’ Browsing Activity Than Previously Believed

Researchers at Norton LifeLock have found that web trackers are collecting much more information about users’ browsing activity than had previously been believed. Such trackers can follow ...

[New Feature] Give Your Users Additional Learning Opportunities Driven By AI with New AI-Recommended Optional Learning Feature

We are excited to announce that the power of AI has been brought to the KnowBe4 Optional Learning feature to offer users suggestions for additional training opportunities.

1 in 7 Ransomware Extortion Leaks Include Sensitive Operational Technology Details

New analysis of published data from ransomware attacks puts the spotlight on the potential that some of your most critical data stolen puts you materially at risk of another attack.

Opinion: Is Your Cyber Insurance Going To Cover “Cyber War”?

With the lines increasingly blurred between whether a cyber attack is “state sponsored” or just a malicious group of individuals, we’re likely going to see more denials of claims.

KnowBe4 Unveils Official Trailer for ‘The Inside Man’ Season 4

We’re excited to announce the release of the official trailer for Season 4 of the award-winning Knowbe4 Original Series - ‘The Inside Man’!

COVID-19 Test-Related Phishing Scams Jump 521% Into January

New data shows a massive increase between October 2021 and January 2022 in phishing attacks focusing on one of the world’s current concerns for home and in-office testing.

8 New Malware Payloads Spotted As Part of Attacks Against Ukrainian Targets

Security Threat Researchers at Symantec have published details about malware being put out by the “Gamaredon” threat group (who have been tied to Russian Federal Security Service), ...

New Phishing Campaign is Impersonating Zoom to Steal Credentials

A phishing campaign is impersonating Zoom in order to steal users’ Microsoft credentials, according to Lauryn Cash at Armorblox. The emails landed in about 10,000 inboxes, and targeted “a ...