Stu Sjouwerman

Chief Executive Officer & President

Stu Sjouwerman (pronounced “shower-man”) is the founder and CEO 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.

Books

Cyberheist E-Book

Find all of Stu's books on Amazon

Annual Ransomware Payments Surpass $1 Billion

Feb 27, 2024 9:50:53 AM By Stu Sjouwerman

For the first time, analysis of ransomware payments made in a single year tops $1,000,000,000. This signals a massive return to more frequent, sophisticated, and successful attacks.

CyberheistNews Vol 14 #09 Exposed: Global Espionage Unleashed by China's Police in Groundbreaking Leak

Feb 27, 2024 9:00:00 AM By Stu Sjouwerman

Swiss Government Identified 10,000 Phishing Websites Impersonating 260 Brands

Feb 26, 2024 8:00:00 AM By Stu Sjouwerman

Attacks targeting Swiss residents increased 10% last year, according to newly-released data that shows a growth in not just phishing attacks, but brand impersonation at purely a national ...

Your KnowBe4 Compliance Plus Fresh Content Updates from February 2024

Feb 26, 2024 8:00:00 AM By Stu Sjouwerman

Check out the February updates in Compliance Plus so you can stay on top of featured compliance training content.

Face off: New Banking Trojan steals biometrics to access victims’ bank accounts

Feb 23, 2024 10:11:50 AM By Stu Sjouwerman

Venturebeat had the scoop on a fresh Group-IB report. They discovered the first banking trojan that steals people’s faces. Unsuspecting users are tricked into giving up personal IDs and ...

Nearly One in Three Cyber Attacks In 2023 Involved The Abuse of Valid Accounts

Feb 23, 2024 9:02:47 AM By Stu Sjouwerman

Thirty percent of all cyber incidents in 2023 involved abuse of valid credentials, according to IBM X-Force’s latest Threat Intelligence Index. This represents a seventy-one percent ...

Data Breach at French Healthcare Payment Processor Puts 20 Million Policyholders at Risk

Feb 23, 2024 9:02:40 AM By Stu Sjouwerman

A single account being phished caused millions of French healthcare policyholder records to be breached.

Your KnowBe4 Fresh Content Updates from February 2024

Feb 23, 2024 8:00:00 AM By Stu Sjouwerman

Check out the 29 new pieces of training content added in February, alongside the always fresh content update highlights, events and new features.

Exposed: Global Espionage Unleashed by China's Police in Groundbreaking Leak

Feb 21, 2024 4:12:11 PM By Stu Sjouwerman

[DEVELOPING STORY] I get my news from a very wide variety of sources. One is the venerable SpyTalk news that lives in Substack. They just reported something pretty astounding. Here are ...

QR-Code Attacks Target the C-Suite 42 Times More than Standard Employees

Feb 21, 2024 3:23:36 PM By Stu Sjouwerman

QR-code attacks leveraging QR-codes are kicking into high gear and becoming a common method used in phishing attacks, according to new data from Abnormal Security.

Malware Delivered Through Phishing Surges 276%

Feb 21, 2024 3:23:19 PM By Stu Sjouwerman

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

Feb 21, 2024 8:00:00 AM By Stu Sjouwerman

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

Feb 20, 2024 1:03:01 PM By Stu Sjouwerman

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

Feb 20, 2024 1:02:56 PM By Stu Sjouwerman

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

CyberheistNews Vol 14 #08 Browser-Based Phishing Attacks Increase 198%, With Evasive Attacks Increasing 206%

Feb 20, 2024 9:00:00 AM By Stu Sjouwerman

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

Feb 20, 2024 8:00:00 AM By Stu Sjouwerman

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

Feb 19, 2024 4:01:06 PM By Stu Sjouwerman

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

Feb 19, 2024 4:01:02 PM By Stu Sjouwerman

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

Feb 19, 2024 8:52:12 AM By Stu Sjouwerman

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

Feb 16, 2024 3:34:13 PM By Stu Sjouwerman

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

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