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

New York Department of Financial Services Strengthens Cybersecurity Regulation

Nov 7, 2023 1:47:01 PM By Stu Sjouwerman

The NYDFS’ 23 NYCRR Part 500 has been updated to reflect the current preventative and responsive measures necessary for Financial Services org to be ready for cyber attacks.

New State of Phishing Report 2023: An Alarming Surge in Phishing Threats

Nov 7, 2023 1:46:54 PM By Stu Sjouwerman

The fight against cyber threats remains a top priority for all organizations, including phishing attacks. SlashNext just released its much-anticipated annual "State of Phishing Report for ...

Targeted Social Engineering on the Rise With Lowering Phishing-as-a-Service Costs

Nov 7, 2023 1:46:47 PM By Stu Sjouwerman

Targeted individuals were the most common victims of social engineering attacks in the second half of 2022 and the first half of 2023, according to researchers at AtlasVPN.

CyberheistNews Vol 13 #45 [BUDGET AMMO] The Outstanding ROI of KnowBe4's Security Awareness Training Platform

Nov 7, 2023 9:00:00 AM By Stu Sjouwerman

IT Admins Continue to Use Weak Passwords

Nov 6, 2023 5:26:21 PM By Stu Sjouwerman

In an analysis of web pages identified as admin portals, some incredibly weak passwords were identified – and some of them are going to really surprise you.

Healthcare Sector Experiencing Increases in Ransomware, Ransoms and Downtime

Nov 6, 2023 9:18:42 AM By Stu Sjouwerman

An analysis of ransomware attacks on healthcare organizations from 2016 through October of 2023 shows the healthcare sector is likely to continue to suffer as a viable ransomware target.

Spear Phishing Becomes Most Common Attack Technique in Q3 2023

Nov 6, 2023 9:18:13 AM By Stu Sjouwerman

Spear phishing was the most common attack technique in the third quarter of 2023, according to researchers at ReliaQuest.

Cybersecurity Expert: AI Lends Phishing Plausibility for Bad Actors

Nov 2, 2023 10:47:52 AM By Stu Sjouwerman

Cybersecurity experts expect to see threat actors increasingly make use of AI tools to craft convincing, highly targeted and sophisticated social engineering attacks, according to Eric ...

Small Businesses are Experiencing More Cyber Attacks

Nov 2, 2023 10:47:49 AM By Stu Sjouwerman

As large organizations realize the likelihood of cyber attacks and improve their cyber readiness, small businesses are seeing increases not experienced by their larger counterparts.

Investigate User-Reported Emails with Ease Through the Powerful Combination of CrowdStrike Falcon Sandbox and KnowBe4 PhishER Plus

Nov 2, 2023 10:20:30 AM By Stu Sjouwerman

The never-ending deluge of phishing emails, malware and ransomware threats can leave incident response and security operation teams (SOC) looking for faster ways to analyze user-reported ...

WSJ: "SEC Sues SolarWinds Over 2020 Hack Attributed to Russians"

Oct 31, 2023 10:24:03 AM By Stu Sjouwerman

October 30, 2023 the Wall street Journal broke news that the United States Security and Exchange Commission sued Solarwinds. Here are the first few paragraphs and there is a link to the ...

September Sees a 32% Increase in the Number of Ransomware Attacks in Just One Month

Oct 31, 2023 10:07:46 AM By Stu Sjouwerman

Continued analysis of ransomware attacks shows an upward trend in the number of attacks, with September resulting in the highest number of assaults so far this year.

Cybercriminal Group Octo Tempest and Its Menacing Phishbait

Oct 31, 2023 10:07:28 AM By Stu Sjouwerman

Microsoft is tracking a cybercriminal group called “Octo Tempest” that uses threats of violence as part of its social engineering and data theft extortion campaigns.

CyberheistNews Vol 13 #44 [Don't Get Trapped] The Dark History of Phishing and More Social Engineering

Oct 31, 2023 9:00:00 AM By Stu Sjouwerman

Exposed: Scam Artists Mimicking PepsiCo in Phishing Schemes

Oct 30, 2023 2:30:11 PM By Stu Sjouwerman

Researchers at INKY warn that a phishing campaign is attempting to distribute malware by impersonating PepsiCo.

The Outstanding ROI of KnowBe4's Security Awareness Training Platform

Oct 29, 2023 3:36:02 PM By Stu Sjouwerman

My name is Stu Sjouwerman. I’m the Founder and CEO of KnowBe4, my 5th startup. I have been in IT for 40+ years, the last 25 of those in information security.

New Amazon-Themed Phishing Campaign Targets Microsoft Live Outlook Users

Oct 27, 2023 11:43:25 AM By Stu Sjouwerman

Several months ago, Netskope Threat Labs uncovered a surge in PDF phishing attachments infiltrating Microsoft Live Outlook. These attacks were part of a larger series of phishing ...

[Live Demo] Customizing Your Compliance Training to Increase Effectiveness

Oct 27, 2023 8:15:00 AM By Stu Sjouwerman

Linking compliance training to specific outcomes is hard. Compliance training has a reputation for being challenging for organizations to offer, difficult to do right and employees are ...

Your KnowBe4 Fresh Content Updates from October 2023

Oct 27, 2023 8:00:00 AM By Stu Sjouwerman

Check out the 27 new pieces of training content added in October, alongside the always fresh content update highlights, events and new features.

Celebrating Cybersecurity Awareness Month with KnowBe4: Insights from Our Valued Customers

Oct 26, 2023 12:28:33 PM By Stu Sjouwerman

To celebrate Cybersecurity Awareness Month this year, KnowBe4 customers from various industries and backgrounds are sharing their innovative and exciting approaches to promote ...

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