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

New SNAKE Ransomware is an Attack Mix of Obfuscation, Encryption, and Corporate Disruption

Beware! This new targeted attack variant of ransomware is smart, sophisticated, and does a lot more than just encrypt files.

Hackers Target the Special Olympics of New York and Use them to Launch Phishing Attacks

This latest attack demonstrates how cybercriminals can leverage one organization as merely a part of a larger phishing campaign to scam countless individuals out of credentials or money.

Fast Work By Cops Recovers $710,000 After CEO Fraud Attack Hits Long Island County Government

Finally some good news. Newsday reports that in record time, Nassau County, New York, recovered $710,000 that was transferred to scammers who were impersonating an existing county vendor.

New Languages Added to KMSAT Learner Experience

Late Friday, the product team added 6 new languages to the KMSAT Learner Experience bringing the total number to 21 languages supported. The new languages include:

[New Ransomware Threat] Now Cyber Criminals Demand Ransom From The PATIENTS After A Plastic Surgery Clinic Data Breach

Just when you thought it could not get any worse... it did. Criminal hackers are now demanding that all the patients of Florida provider Richard Davis, MD pay a ransom to prevent the ...

Texas School District Loses $2.3 Million In BEC Scam

Texas’s Manor Independent School District was the victim of a costly 2.3 million dollar Business Email Compromise (BEC) scam in November of 2019.

Auto Dealership Becomes Latest Victim of Ransomware Attack Costing Up to $500,000

The opening of a seemingly benign email from a coworker by an unsuspecting employee set in motion an attack that brought operations to a halt and resulted in some costly remediation. The ...

Microsoft Sues Hacker Group for Data Theft of Highly Sensitive Information

A new recently unsealed lawsuit against a North Korean hacker group shows how even the largest companies can be successfully attacked by phishing.

An Overview of Phishing from the Accounting Sector

Employee training is an essential long-term defense against phishing attacks, according to David Barton and Kimberly Anderson at UHY Advisors. In an article for Accounting Today, Barton ...