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

You Have Not Suffered A Data Breach But How Do You Prevent Credential-Stuffing Attacks?

Frequent data breaches and the widespread availability of automated tools to take advantage of the compromised information have greatly increased the efficiency of credential stuffing ...

[On-Demand Webinar] Spotting the Gaps: Is Your Traditional Security Stack Giving You a False Sense of Security?

Endpoint security, firewalls, VPNs, authentication systems… we’ve all got them. But do they really provide the comprehensive level of security your organization needs to keep the bad guys ...

Europol Finds Majority of Attack Groups Rely on Spear Phishing as Primary Infection Vector

A new report from Europol’s European Cybercrime Center (EC3) breaks down how targeted phishing attacks are being done, and how to avoid becoming a victim.

Gift Card Scams are Decreasing in Light of Other Business Email Compromise Scams

New data from email security vendor Agari shows Business Email Compromise (BEC) attacks shifting tactics last quarter, in favor of scams resulting in larger payouts.

Identity Deception-Based Phishing Attacks Show an Increase in Impersonating Individuals

The use of impersonating a person or brand as part of an attack in on the rise, giving attackers the upper hand, establishing instant credibility and lowering the defenses of the ...

Phishing for Gamers Uses A Fake Skin Giveaway

BleepingComputer warns that a fake Steam skin giveaway site is stealing users’ Steam credentials. The site appears to be running a 26-day promotion giving away free skins for ...

5 Harsh Truths About Ransomware Attacks At LAW.COM

Frank Ready at LAW.COM wrote this very clear article with great budget ammo. I suggest you forward the link at the bottom to your Legal team, with a cc to your C-level executive who own ...

Insecure Database Exposes Millions of Private SMS Messages

Researchers discovered an unprotected TrueDialog database hosted by Microsoft Azure with diverse and business-related data from tens of millions of users.

Netflix "Account Freeze" Phishing Campaign In The Wild

A Netflix phishing scam is going after users’ payment information and Netflix credentials, according to Naked Security. The phishing emails inform recipients that they’ve missed a payment ...