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

Phishing Attack Compromises Spanish Defense Intranet By Foreign State

Reuters reported that a "computer virus" infected the Spanish Defense Ministry’s intranet this month with the aim of stealing high tech military secrets, El País newspaper said on ...

Norsk Hydro May Have Lost $40M in First Week After Ransomware Infection

Norwegian aluminum giant Norsk Hydro estimates that it may have lost more than $40 million in the first week following the ransomware attack that disrupted its operations.

Canadian Companies See Increases in Attacks, Breaches, and Sophistication in the Last 12 Months

If you read the latest Canadian Threat Report from Carbon Black, the Canadians have it bad… really bad. With increases across the board, Canadian organizations are needing to step up ...

[NEW FEATURE] Upload Your Own Training Content

You asked, we listened! To simplify how you roll out and manage different training programs for your users, you can now use the KnowBe4 security awareness training platform for your ...

How LockerGoga, The Ransomware Crippling Industrial Firms Operates

Technically, LockerGoga is just another ransomware strain and not even a very good one. It's got bugs and it's slow. However, the gang behind it represents a dangerous combination of ...

U.S. Healthcare Employee Engagement with Simulated Phishing Emails Drop by 67% With Repeated Exposure

A long-term phishing study involving 6 healthcare institutions shows employees are vulnerable to phishing attacks, and that they can become more vigilant through exposure.

Mandatory vs. Elective Security Awareness Training

I frequently get variations of the following question: "I met with the CISO yesterday to discuss Awareness Training. He asked if KnowBe4's CEO would comment on the value of mandatory ...

Ransomware Forces Two Chemical Companies to Order ‘Hundreds of New Computers’

Motherboard reported: "It appears that LockerGoga, the same ransomware that hit aluminum manufacturing giant Norsk Hydro this week, also infected American chemicals companies Hexion and ...

[NEW BOOK!] Transformational Security Awareness: What Neuroscientists, Storytellers, and Marketers Can Teach Us About Driving Secure Behaviors

Knowbe4's very own Chief Evangelist Strategy Officer Perry Carpenter has written a brand new book! I recommend you pre-order at Amazon, here is the blurb from the new page promoting the ...