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

Scam-as-a-Service Classiscam Expands Impersonation in Attacks to Include Over 250 Brands

Now entering its third year in business, the phishing platform, Classicam, represents the highest evolution of an “as a service” cybercrime, aiding more than 1000 attack groups worldwide.

USPS Customers Become the Latest Target of the Chinese Smishing Group Called “Smishing Triad”

A new SMS-based phishing attack uses a smishing kit-as-a-service to impersonate the U.S. Postal Service.

Tighter Policies Mixed with Higher Costs Are Creating a Cyber Insurance Gap

New data on the state of cyber insurance shows that it’s becoming more difficult to get a policy, and the organizations obtaining one share that circumstances could cause denial of claims.

TikTok Impersonations of Elon Musk Scam Victims of Their Bitcoin

There’s been a surge of Elon Musk-themed cryptocurrency scams on TikTok, BleepingComputer reports. The scammers inform the victims that they can claim their reward after spending a small ...

Data Breach Costs Rise, But Cybersecurity Pros Still Take Risks

The latest data from IBM shows that the average cost of a data breach has gone up by 2% to a whopping $4.45 million. You would think that in the cybersecurity industry, people would be ...

China's Cyber Offensive: FBI Director Reveals Unmatched Scale of Hacking Operations

WASHINGTON – In a startling revelation, FBI Director Chris Wray disclosed at a recent conference that China's cyber espionage capabilities are so extensive, they bigger than the efforts ...

Romance Scams That Run Your Crypto Wallet Dry

Scammers are using dating sites to lure victims into phony cryptocurrency investment schemes, according to Sean Gallagher at Sophos.

The International Joint Commission Falls Victim to Ransomware Attack; 80GB Of Data Stolen

The International Joint Commission (ICJ), an organization that handles water issues along the Canada–United States border, was hit by a ransomware attack, the Register reports.

[New PhishER Feature] Immediately Add User-Reported Email Threats to Your M365 Blocklist

Now there's a super easy way to keep malicious emails away from all your users through the power of the KnowBe4 PhishER platform!