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

NASA sees an “exponential” jump in malware attacks as personnel work from home

Ars Technica reports that NASA has experienced an exponential increase in malware attacks and a doubling of agency devices trying to access malicious sites in the past few days as ...

Cloud-based Business Email Compromise

The FBI’s Internet Crime Complaint Center (IC3) published an alert warning that criminals are exploiting cloud-based email services to carry out business email compromise (BEC) attacks. ...

March Content Update: Including Work From Home and Coronavirus Training Resources

Here are a few important updates to share with you from the month of March.

Phishing Trends Recap of COVID-19 Related Phishing Schemes

Our Chief Evangelist Strategy Officer Perry Carpenter took a bit of time and summarized the crazy month of March 2020 looking at the exponential growth of COVID-19 themed phishing attacks.

Social Distancing Elevates Both Personal and Organizational Risk

With many countries participating in social distancing and “shelter in place” directives, remote workers are subjecting themselves and their employer to a number of risks. Find out why.

Bad News from the (Fake) CDC: You've Got Malware

Malicious actors continue to probe organizations' security and defenses with malicious emails explicitly crafted to create and exploit sense of panic in the wake of the COVID-19. Over the ...

Malicious Actors Release Coronavirus Guidelines for America

You already knew this was going to happen. It was just a matter of waiting. Fast on the heels of the release of President Trump's "Coronavirus Guidelines for America," malicious actors ...

Organizations Say They Want Employees to Prepare for Ransomware Attacks, But Do Little in the Way of Training

Organizations are keenly aware of the ramifications of ransomware attacks and the need to prevent them but aren’t empowering users to prevent becoming the victim.

A new ransomware strain called 'Save the Queen’, distributes itself from your own Domain Controllers

Sophisticated cybercriminals have continuously improved the effectiveness of ransomware attacks, according to Yaki Faitelson, co-founder and CEO of Varonis. In an article for Forbes, ...