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

Hacking Your Digital Identity: How Cybercriminals Can and Will Get Around Your Authentication Methods

Inadequate authentication measures leave your digital identity vulnerable to cybercriminals. Tools like multi-factor authentication, biometrics, passwords, PINs and tokens are more ...

Scary New IT Admin Attack Exposes Your MFA Weakness

Identity and authentication management provider Okta has warned of social engineering attacks that are targeting IT workers in an attempt to gain administrative privileges within ...

CISA Says to Exercise Caution For Disaster-Related Malicious Scams

The US Cybersecurity and Infrastructure Security Agency (CISA) has warned that scammers are exploiting the recent hurricanes that have hit the US. Criminals frequently impersonate ...

Nearly One-Quarter of Financial-Themed Spam Emails are Phishing Attacks

While spam tends to be dismissed as being more of an annoyance, new research shows that there is a very real and ever-present threat in emails that are marked as “spam”.

Cyberattacks Targeting Government Agencies and Institutions Increases in Q2 by 40%

New data shows a massive uptick in attacks across all industries, but a particularly worrisome growth in interest in targeting the public sector – and the indicators of who’s responsible ...

New “Early Warning” System in the U.K. Tips Off Ransomware Targets

British Intelligence has come up with a potentially very effective means to disrupt ransomware attacks, but there seems to still be a few kinks in the system.

New Adversary in the Middle Platform Circumvents MFA Protections “At Scale”

As Phishing as a Service (PhaaS) kits continue to evolve, news like recent attacks using the Greatness toolkit demonstrate how easy it is for novice attackers to access accounts despite ...

You Asked and Here It Is! KnowBe4's New Content Manager Feature is Unveiled

We heard you, and we're thrilled to tell you about the all-new Content Manager feature for KMSAT!

Labor Day Alert: Mobile Phishing Attacks on the Rise for Remote Employees

A recent survey by Lookout, Inc. warns for a specific attack vector as Labor Day approaches. The study shows that 85% of enterprise employees capable of remote work plan to do so on ...