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

Tesla and the FBI just prevented a $1 million ransomware hack at the Nevada Gigafactory

Fred Lambert at Electrek just reported on a story we published Aug 26th, and he reveals who was targeted: "Tesla and the FBI worked together to prevent a group of ransomware hackers from ...

The Bureau Explains How Tech Support Scams Work

Tech support scams function like organized businesses and consist of various criminals fulfilling different roles, according to court documents obtained by ZDNet. The documents contain ...

Russian Charged With Trying to Recruit Employee to Plant Ransomware in US Company

Michael Kan at PC Mag reported: "According to the FBI, Egor Igorevich Kriuchkov promised to pay as much as $1 million to the employee to help his shadowy group steal data from a ...

Recent Phishing Scam Sends Uncertain Employment and Bogus Layoff Notices

Scammers have been exploiting people’s fears by posing as HR employees and sending emails informing recipients that they’ve been laid off, according to Kaspersky’s spam and phishing ...

What happens when you type in a URL in an address bar in a browser?

I saw this post on twitter with a fun and educational infographic that shows it's quite a complicated affair where lots of things can go wrong. Here is the infographic, and if you click ...

Watch Out! Cybersecurity and Infrastructure Security Agency Warn of New VBA Attack Designed to Deploy KONNI Remote Administration Tool

A new alert from CISA outlines just how dangerous and intrusive the KONNI malware is in organizations that fall for phishing attacks using Word attachments with malicious VBA code.

[Heads Up] Weaponized Disinformation Campaigns Skyrocket; KnowBe4 Releases New Spot & Stop DisInfo Training Module

Disinformation is a potent weapon in the current cold cyberwar arsenal. DisInfo attacks are skyrocketing and the number of countries using organized social media manipulation is going up ...

New Vishing Attacks Pretend to Be Internal IT to Scam Users from Financial Firms Out of Their Credentials

Dozens of banks, cryptocurrency exchanges, and web hosting firms have experienced vishing attacks aimed at eventually stealing cryptocurrency from high net-worth customers.

[HEADS UP] There's No Beta for Cyberpunk 2077

Scammers are sending phishing emails purporting to offer beta access to the highly anticipated video game Cyberpunk 2077, Eurogamer reports. These scams have been occurring for at least a ...