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

Malware Delivered Through Phishing Surges 276%

Researchers at VIPRE Security observed a 276% increase in malware delivered by phishing between Q1 and Q4 of 2023.

[INFOGRAPHIC] KnowBe4’s Learner App by the Numbers

The KnowBe4 Learner App enables your users to complete their security awareness and compliance training conveniently from their smartphones and tablets.

IBM Tests Audio-Based Large Language Model to Hijack Live Conversations

With the idea in mind to “audio-jack” a live call-based banking transaction, security researchers were successful in inserting cybercriminal-controlled account details.

Malvertising Campaign Spreads Phony Utility Bills

A widespread malvertising campaign is attempting to trick users into paying phony utility bills, according to researchers at Malwarebytes.

[On-Demand Webinar] Making The Return on Investment (ROI) Case For Security Awareness Training

As an InfoSec professional, one of your many important responsibilities is to minimize expensive downtime and prevent data breaches.

State-Sponsored Threat Actors Targeting European Union Entities With Spear Phishing Campaigns

Numerous state-sponsored threat actors frequently launched spear phishing attacks against European Union entities last year, according to a new report from the EU’s Emergency Response ...

Only 7% of Organizations Can Restore Data Processes within 1-3 Days After a Ransomware Attack

New data on how organizations are able to respond to ransomware attacks also shows that paying a ransom is highly likely, despite having a policy of “Do Not Pay.”

[On-Demand Webinar] The IT Pro's How-to Guide to Building a Strong Security Culture

The thought of building and improving your organization’s security culture can seem like a daunting task. How can you influence an entire culture? With the right plan, buy-in and content, ...

Messaging Platform Telegram Sprouts Cyber Crime “Marketplaces” of Tools, Insights and Data

Cybercriminals are taking advantage of the messaging platform Telegram by creating channels and groups where learning and commerce all can take place freely.