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

Microsoft and OpenAI Team Up to Block Threat Actor Access to AI

Analysis of emerging threats in the age of AI provides insight into exactly how cybercriminals are leveraging AI to advance their efforts.

Phishing Kit Targets the FCC and Crypto Exchanges

Researchers at Lookout have discovered a sophisticated phishing kit that’s targeting employees at the US Federal Communications Commission (FCC), as well as employees of cryptocurrency ...

Cybercriminals Sent 1.76 Billion Social Media Phishing Emails in 2023

As social media phishing reaches new heights, new data reviewing 2023 shows a massive effort by cybercriminals to leverage impersonation of social media brands.

Email-Based Cyber Attacks Increase 222% as Phishing Dominates as the Top Vector

Analysis of the second half of 2023 shows attackers are getting more aggressive with email-based phishing attacks in both frequency and execution.

New Research: Ransomware Incidents Spike 84% in 2023

Newly-released data covering cyberthreats experienced in 2023 sheds some light on how very different last year was and paints a picture of what to expect of cyber attacks in 2024.

Phishing Campaign Targets Mexican Taxpayers With Tax-Themed Lures

A phishing campaign is targeting users in Mexico with tax-themed lures, according to researchers at Cisco Talos. The phishing emails direct users to a website that attempts to trick them ...

When Threat Actors Don’t Have a Viable Email Platform to Phish From, They Just Steal Yours

New analysis of a phishing campaign shows how cybercriminals use brand impersonation of the platforms they need to compromise accounts and takeover legitimate services.

[SCARY] You knew about OSINT, but did you know about ADINT?

WIRED just published a scary (long) article. I am summarizing it here and highly recommend you read the whole thing.

Emails Are Responsible for 88% of Malicious File Deliveries

Emails are still the most common delivery method for malicious files, according to Check Point’s Cyber Security Report for 2024.