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-as-a-Service Platform LabHost Disrupted by Law Enforcement Crackdown

One of the largest phishing-as-a-service platforms, LabHost, was severely disrupted by law enforcement in 19 countries during a year-long operation that resulted in 37 arrests.

AI Met Gala Deepfakes Show Real Risks of Generative AI

The Met Gala, fashion's biggest night, was not just the A-list attendees who stole the spotlight—digital imposters in the form of AI-generated superstars sent social media into a frenzy.

Arizona Election Workers Battle Against Deepfake Threats in New AI Defense Drill

In the quest to secure the integrity of elections, Arizona election workers have taken a groundbreaking step by participating in a first-of-its-kind drill meant to defend against a new ...

[Must Read] How Boeing Battled a Whopping $200M Ransomware Demand

Boeing recently confirmed that in October 2023, it fell victim to an attack by the LockBit ransomware gang, which disrupted some of its parts and distribution operations. The attackers ...

[Breaking] The News Is Increasingly Broken. Surge Of Inaccurate AI News Stories

Keeping up to date what is happening is crucial in IT, but the reliability of the news you consume is facing a growing threat.

Phishing Reports in Switzerland More Than Doubled Last Year

Switzerland’s National Cyber Security Centre (NCSC) received more than 30,000 reports of cyber incidents in the second half of 2023, more than double the amount received in the second ...

9 in 10 Organizations Paid At least One Ransom Last Year

New analysis of cyber attacks shows ransomware attacks are running far more rampant than previously thought, with half of organizations blaming poor cyber hygiene.

KnowBe4 Earns Multiple 2024 Best Of Awards From TrustRadius

KnowBe4 is proud to be recognized by TrustRadius for our Security Awareness Training and PhishER platforms.

Verizon: Nearly 80% of Data Breaches Involve Phishing and the Misuse of Credentials

Innovative analysis of data breaches shows which attack vectors are being used and how they’re enabled, highlighting the roles phishing and credentials play.

Credential-Harvesting Campaign Impersonates Fashion Retailer Shein

A phishing campaign is impersonating fashion retailer Shein in an attempt to steal users’ credentials, according to researchers at Check Point.