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

New Phishing Method Uses VNC to Bypass MFA Measures and Gives Cybercriminals Needed Access

Despite cloud vendors like Google detecting reverse proxies or man-in-the-middle (MiTM) attacks and halting logons to thwart malicious actions, a new method easily gains access.

[Eye Opener] Ukraine Is Now Being Hit With 4 Different Strains Of Wiper Malware

Newly discovered data-destroying malware was found this week in attacks targeting Ukrainian organizations and deleting data across systems on compromised networks. "This new malware ...

We Are In The First Open Source Intelligence War

I am a member of OODA loop. They are a great team that keeps me up to date about InfoSec issues. Their site always has interesting articles and this one certainly got my attention. The ...

CyberheistNews Vol 12 #11 [Heads Up] FBI: Ransomware Gang Breached 52 U.S. Critical Infrastructure Orgs

[Heads Up] FBI: Ransomware Gang Breached 52 US Critical Infrastructure Orgs Email not displaying? | View Knowbe4 Blog CyberheistNews Vol 12 #11 | Mar. 15th., 2022 [Heads Up] FBI: ...

Shipping Fraud Rises Nearly 800% in 2021

Shipping fraud had a global increase of nearly 800% over the course of 2021, according to TransUnion’s 2022 Global Digital Fraud Trends Report.

[On-Demand Webinar] Cybercrime-as-a-Service: Its Evolution and What You Can Do to Fight Back

The cybercrime market has skyrocketed in a frightening way. With threats such as ransomware to Business Email Compromise (BEC), the stakes are higher than ever for organizations across ...

Social Engineering through Contact Form

Email is the familiar form of phishing, but there’s an ongoing criminal campaign that follows a different, arguably subtler avenue of approach: the corporate contact form. Abnormal ...

Email-Based Vishing Attacks Skyrocket 554% as Phishing, Social Media, and Malware Attacks Are All on the Rise

A new analysis of attacks in 2021 shows massive increases across the board, painting a very concerning picture for 2022 cyberattacks of all types.

“Warm Greetings” (or not) : Saudi Aramco Impersonation

Researchers at Malwarebytes warn of a phishing campaign that’s targeting the oil and gas industry by impersonating Saudi Aramco.

Phishing and Scam Pages Increase by 153% as Cybercriminals Seek to Establish Credibility

As part of either impersonating known brands or simply leveraging credible cloud services, the use of a web page as part of an attack has become a staple for threat actors.