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

KnowBe4 Named a Leader in the Winter 2023 G2 Grid Report for Security Awareness Training

We are thrilled to announce that KnowBe4 has been named a leader in the latest G2 Grid Report that compares Security Awareness Training (SAT) vendors based on user reviews, customer ...

XLL Files Used to Deliver Malware

Attackers are using XLL files to embed malicious code in Office documents, according to researchers at Cisco Talos. Microsoft is phasing out the ability to execute VBA macros in Office ...

Now BEC Attacks Steal Physical Goods

The Federal Bureau of Investigation (FBI), the Food and Drug Administration Office of Criminal Investigations (FDA OCI), and the US Department of Agriculture (USDA) have released a joint ...

Social Engineering, Money Mules, and Job Seekers

A small town in Manitoba, WestLake-Gladstone (population about 3300), fell victim to a social engineering campaign. The municipal government seems to have been a target of opportunity, ...

Hospitals Warned of Royal Ransomware Attacks by U.S. Department of Health

This brand new ransomware gang is on the attack and, despite them being new to the game, are coming out of the gate attacking the healthcare sector and asking for millions in ransom.

Less Than One-Third of Organizations Leverage Multiple Authentication Factors to Secure Their Environment

Demonstrating a complete lack of focus on the need for additional authentication factors, surprising new data highlights a material security gap that enables cybercrime.

Ten Charged with BEC Healthcare Scheme That Took More than $11 Million

Tricking five state Medicaid programs, two Medicare Administrative Contractors, and two private health insurers, the scammers posed as hospitals to alter payment details.

Cybersecurity Experts Weigh in on Modern Email Attacks

Abnormal Security’s CISO, Mike Britton consolidates some of the best advice from a three-part webinar series on the current state of risk found in email-based cyberattacks

Interest in Infostealer Malware Within Cyberattacks Spikes as MFA Fatigue Attacks Increase

New analysis of dark web forums shows an increase in discussions around the use of infostealer malware as part of both the first attack within a campaign or as part of an initial access ...