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

InfraGard Recommends User Education

Education is crucial in defending against evolving social engineering attacks, according to Jack Plaxe, president of the Kentucky InfraGard Alliance. During a presentation last week, ...

Phishing Attacks Top Verizon’s List of Threat Actions Used in Data Breaches

Verizon’s latest Data Breach Investigations Report provides valuable insight into exactly how attacks are carried out, what tactics are working, and how users are helping.

[Heads-Up] If This Is True It's A Disaster. Three Major US Antivirus Companies Breached? ***UPDATED

ARSTECHNICA is getting me worried here. We were all at KB4-CON in Orlando the last few days, and during the conference word got to me that security researchers found out that high-profile ...

[Spoiler!] That Free Avengers: Endgame Download You Found Online? It’s a Scam!

The lure of watching the latest Avengers movie is enough motivation for some to fall for this scam aimed at collecting your credit card data.

Half of SMBs Will Pay the Ransom in a Ransomware Attack

Despite the ability to properly protect against ransomware attacks, the latest data from AppRiver shows SMBs simply aren’t prepared to respond, and will, instead, pay up.

Phishing Continues to Rise as Attacks Go Malwareless

Cybercriminals seem to be honing their craft, picking specific attack types, victim demographics, and methods, according to new data from the latest PhishLab’s report.

Half of all 2020 Presidential Candidates are Susceptible to Impersonation Attacks

Recent analysis of the websites of 16 current presidential candidates indicate insufficient security to stop attackers from sending emails out impersonating the campaign.

Russian cyberspies are using one hell of a clever Microsoft Exchange backdoor

A Russian cyber-espionage group has developed and has been using one of the most complex backdoors ever spotted on an email server, according to new research published by cyber-security ...

Deepfake Videos – An Increasing Cyber Threat For Corporate Clients

Insurance Business Mag had an interesting take on your users being the victim of social engineering by deepfakes. Your cyber insurance policy is not likely to pay out in cases like this. ...

KnowBe4 Fresh Content & Features Updates - April 2019

Check out the content and feature updates in the KnowBe4 platform for the month of April! NEW FEATURED CONTENT - STANDUPS 4 SECURITY We’re excited to highlight the release of the new ...