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

A "Secure DNS" Scam: an Upgrade that's a Downgrade

A phishing campaign is targeting website owners with convincing, personalized emails that purport to come from WordPress, Naked Security reports. The emails claim that WordPress is ...

COVID-19 Related Phishing Scams Target Passport Details

The Coronavirus phishing scams have only gotten more aggressive and targeted now than ever before, InfoSecurity Magazine reports. Now researchers at Griffin Law are tracking self-employed ...

Australia Spending Nearly $1 Billion on Cyberdefense as China Tensions Rise

The NY Times reported some surprising numbers: "Officials promised to recruit at least 500 cyberspies and build on the country’s offensive capabilities to take the online battle overseas. ...

Phishing in Irish Streams

Netflix is warning users in Ireland to be on the lookout for another phishing campaign that’s impersonating the streaming service, Extra.ie reports. The emails inform recipients that ...

It's the Best of 2020! Cyber CSI: Learn How to Forensically Examine Phishing Emails to Better  Protect Your Organization

Roger Grimes' lesson on how to forensically examine phishing emails received the highest viewer rating of any webinar so far this year. In case you missed it, make sure to watch this ...

60% of Organizations are Hit by Cyberattacks Spread by Their Own Employees

The unwitting participant appears to be alive and well, based on new data from security vendor Mimecast. With employees being the source of attack surface expansion, what’s an org to do?

New Sextortion Method Uses Social Engineering and Doxing To Identify and Target Victims

According to the SANS Internet Storm Center, cybercriminals are engaging their victims online, using social engineering tactics to collect needed details to extort money.

New Dropbox-Based Pandemic Relief Payment Scam Targets U.K. Microsoft 365 Users, Bypassing Email Security

Using a Dropbox Transfer page, this new scam presses all the urgency buttons while eluding detection as being malicious in an effort to steal the victim’s online credentials.

Hit Them When They're Down: Two Cyberattacks Leave Operations Halted with a Ransom to Pay

A recent cyberattack on Australian beverage manufacturer Lion demonstrates how even a modicum of precaution after an attack can spell doom for operations.