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

Phishing Campaign Targets Job Seekers With WARMCOOKIE Backdoor

A phishing campaign is impersonating recruiting firms to target job seekers with a new strain of malware, according to researchers at Elastic Security.

Cybercriminals Use New V3B Phishing Kit to Mimic 54 Different Banks in the European Union

A new phishing-as-a-service toolkit that leverages credential interception and anti-detection capabilities has put EU banks at severe risk of fraud.

New Research Shows An Alarming Trend of Phishing Attacks Doubling For US and European Organizations

Cybercriminals never sleep, and their aim keeps getting better. According to new research from Abnormal Security, phishing attacks targeting organizations in Europe shot up by a ...

Beware: Major AI Chatbots Now Intentionally Spreading Election Disinformation

Just when you thought the disinformation landscape couldn't get any worse, a new report from Democracy Reporting International in Europe reveals that popular AI chatbots have started ...

Sinister "More_eggs" Malware Cracks Into Companies by Targeting Hiring Managers

Job seekers, beware - cybercriminals have a nasty new way to slide their malicious code on corporate networks. Researchers have uncovered a devious phishing campaign that's distributing ...

DarkGate Malware Being Spread Via Excel Docs Attached To Phishing Emails

A phishing campaign is spreading the DarkGate malware using new techniques to evade security filters, according to researchers at Cisco Talos.

New HR-Themed Credential Harvesting Phishing Attack Uses Legitimate Signature Platform Yousign

A new phishing campaign is exploiting the eSignature platform Yousign.

Bruce Schneier: "AI Will Increase the Quantity—and Quality—of Phishing Scams"

Wow. It does not happen often that the godfather of infosec comes out this strong about phishing risks. He co-published new research in the Harvard Business Review May 30, 2024, which in ...

Everything You Can Do to Fight Social Engineering and Phishing

Social engineering and phishing are not just IT buzzwords; they are potent threats capable of devastating damage to your organization.

[New Feature] Find Out if They've Got a Bad Reputation in Record Time with PhishER Plus Threat Intel

The PhishER Plus platform just got smarter with the addition of the new PhishER Plus Threat Intel feature that integrates web reputation data into the PhishER Plus console.