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

Google Maps’ Bank Listings Updated by Scammers

Scammers are taking advantage of Google Maps by modifying the contact information of the service’s bank listings. After replacing banks’ legitimate phone numbers with numbers of their ...

GreyEnergy Malware Spreads Through Phishing Emails

The GreyEnergy APT primarily uses phishing emails as its initial infection method, according to analysis by Nozomi Networks. The malware has been targeting industrial control systems in ...

Phishing Emails are Targeting Spotify Users

A phishing campaign is attempting to steal login credentials from Spotify users, according to researchers at AppRiver. The emails ask users to click a hyperlink to confirm their accounts, ...

Hackers reportedly breached Republican campaign committee emails during 2018 elections

The National Republican Congressional Committee (NRCC) was hacked during the 2018 midterm elections, according to a report from Politico. Republican officials said that hackers had access ...

61% of Organizations Believe Negligent Users Will be the Primary Cause of a Data Breach in the Next 12 Months

Dark Readings annual Strategic Security Survey provides several details highlighting that organizations aren’t ready, and users aren’t helping.

Why You Need To Make Security Awareness Training Mandatory. Read This Horror Story.

OK, so here is a horror story that you can prevent from happening in your own organization. Now and then we hear that KnowBe4 customers do not make the security awareness training ...

Data Breach at Q&A Site Quora Affects 100 Million

It's all over the news, it even made the Wall Street Journal. I'm a quora participant myself and received the news directly in an email.

That was fast! Bad Guys Are Using The Marriott Breach For Phishing Attacks

As predicted, the Marriott breach is heaven for bad guys. KnowBe4 customers are using the (free) Phish Alert Button to report in the wild phishing attacks using the recent news.

From the “Shaking My Head” File: New Phishing Scam Seeks to Help Wildfire Victims… With Google Play Cards???

Cybercriminals will take advantage of any major news story if there’s a way to make money from it. But sometimes, the scam just gets a little too odd to believe.