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

Your KnowBe4 Compliance Plus Fresh Content Updates from August 2024

Check out the August updates in Compliance Plus so you can stay on top of featured compliance training content.

Scammers Use Fake Funeral LiveStream Social Media Posts to Extort Victims

In a troubling new low, cybercriminals are targeting individuals grieving the loss of a loved one by charging their credit cards with excessive fees through a heartless scam. According to ...

Nearly Half of Mid-Market and Enterprise Organizations Have Experienced Four or More Ransomware Attacks in the Last Year

New data exposes the reality of ransomware attacks today, including their frequency, impact, ransom payment – and the involvement of human error.

Threat Actors Abuse Microsoft Sway to Launch QR Code Phishing Attacks

Researchers at Netskope last month observed a 2000-fold increase in traffic to phishing pages delivered through Microsoft Sway.

U.S. Experiences 52% Increase in the Number of Ransomware Attacks in One Year

New analysis of current ransomware attacks shows a massive focus on U.S. organizations, with growth spread across nearly every industry.

Your KnowBe4 Fresh Content Updates from August 2024

Check out the 29 new pieces of training content added in August, alongside the always fresh content update highlights, events and new features.

Fewer, High-Profile Ransomware Attacks Are Yielding Higher Ransoms

Analysis of cryptocurrency payments made on the blockchain highlights shifts in the size and frequency of ransomware attacks and may paint a bleak picture for the remainder of the year.

Iran’s APT42 Targets WhatsApp Users With Spear-Phishing Attacks

Researchers at Meta have published details on Iranian spear-phishing attacks targeting WhatsApp accounts. The activity is attributed to APT42, a threat actor tied to Iran’s Islamic ...

Email Compromise Remains Top Threat Incident Type for the Third Quarter in a Row

New analysis of Q2 threats shows a consistent pattern of behavior on the part of threat actors and threat groups, providing organizations with a clear path to protect themselves.

Phishing Attacks Are Increasingly Targeting Social Media and Smartphone Users

Threat actors are increasingly tailoring their attacks to target social media apps and smartphone users, according to a new report from the Anti-Phishing Working Group (APWG).