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

Ransomware Distributed by Fake Tripadvisor Reviews

Aug 15, 2023 9:37:02 AM By Stu Sjouwerman

The Knight ransomware-as-a-service offering (formerly known as “Cyclops”) is using phony TripAdvisor complaints to deliver its malware, BleepingComputer reports.

[FREE RESOURCE KIT] Cybersecurity Awareness Month Kit 2023 Now Available

Aug 15, 2023 9:36:59 AM By Stu Sjouwerman

Get the resources you need to help keep your users safe from malicious social engineering attacks during this year's Cybersecurity Awareness Month with our free resource kit.

CyberheistNews Vol 13 #33 [INFOGRAPHIC] Uncovered: Top-Clicked Q2 Phishing Tests Are from Your HR

Aug 15, 2023 9:00:00 AM By Stu Sjouwerman

KnowBe4 Celebrates Winning a Tech Cares Award From TrustRadius 2023

Aug 14, 2023 2:54:15 PM By Stu Sjouwerman

For the fourth consecutive year, we received a Tech Cares Award from TrustRadius! This fourth annual award celebrates companies that have gone above and beyond to provide strong Corporate ...

Gootloader Malware Uses Social Engineering to Target Law Firms (or their Clients)

Aug 14, 2023 10:56:30 AM By Stu Sjouwerman

Law firms are being targeted by a large number of social engineering attacks involving the Gootloader malware delivery tool, according to researchers at Trustwave.

AI's Role in the Next Financial Crisis: A Warning from SEC Chair Gary Gensler

Aug 14, 2023 6:40:38 AM By Stu Sjouwerman

TL;DR - The future of finance is intertwined with artificial intelligence (AI), and according to SEC Chair Gary Gensler, it's not all positive. In fact, Gensler warns in a 2020 paper ...

[Live Demo] Boost Your Email Security Defense - PhishER Plus to the Rescue!

Aug 11, 2023 4:09:16 PM By Stu Sjouwerman

Now there's a super easy way to keep malicious emails away from all your users through the power of KnowBe4 PhishER Plus!

Number of Named Ransomware Victim Organizations Jumps 64% in One Quarter

Aug 11, 2023 8:21:58 AM By Stu Sjouwerman

The second quarter of this year has become the focus of some new firsts in ransomware attacks, according to new data from cybersecurity vendor Reliaquest.

Salesforce Becomes the Latest Platform to Unwittingly Aid Phishing Scammers

Aug 11, 2023 8:21:43 AM By Stu Sjouwerman

Cybercriminals used the legitimacy of Salesforce’s email gateway to bypass security scanners and target Meta customers in an effort to steal Facebook credentials.

Comcast: 9 out of 10 Attempts to Breach Customer Networks Start with a Phish

Aug 11, 2023 8:21:30 AM By Stu Sjouwerman

The latest data from Comcast Business’ analysis of over 23.5 billion cyber attacks on their business customers shows the importance and role of phishing in attacks.

AI's Role in Cybersecurity: Black Hat USA 2023 Reveals How Large Language Models Are Shaping the Future of Phishing Attacks and Defense

Aug 10, 2023 2:39:58 PM By Stu Sjouwerman

At Black Hat USA 2023, a session led by a team of security researchers, including Fredrik Heiding, Bruce Schneier, Arun Vishwanath, and Jeremy Bernstein, unveiled an intriguing ...

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Stu Sjouwerman

Books

Recent Posts

Ransomware Distributed by Fake Tripadvisor Reviews

[FREE RESOURCE KIT] Cybersecurity Awareness Month Kit 2023 Now Available

CyberheistNews Vol 13 #33 [INFOGRAPHIC] Uncovered: Top-Clicked Q2 Phishing Tests Are from Your HR

KnowBe4 Celebrates Winning a Tech Cares Award From TrustRadius 2023

Gootloader Malware Uses Social Engineering to Target Law Firms (or their Clients)

AI's Role in the Next Financial Crisis: A Warning from SEC Chair Gary Gensler

[Live Demo] Boost Your Email Security Defense - PhishER Plus to the Rescue!

Number of Named Ransomware Victim Organizations Jumps 64% in One Quarter

Salesforce Becomes the Latest Platform to Unwittingly Aid Phishing Scammers

Comcast: 9 out of 10 Attempts to Breach Customer Networks Start with a Phish

AI's Role in Cybersecurity: Black Hat USA 2023 Reveals How Large Language Models Are Shaping the Future of Phishing Attacks and Defense

Black Hat: "Five cyber phases of Russia's hybrid war"

Record ¥3 bil stolen via phishing in Japan in 1st half of 2023

Wordfence Becomes the Latest Brand to be Impersonated Putting 800 Million Sites at Risk

New PCI Password Requirements Could Be the Impetus for Credential Harvesting Scams

Scammers Exploit Twitter’s Transition to “X”

KnowBe4’s Interactive Phishing Analysis Center: Keep Your Finger On The Pulse

Most Organizations Using Weak Multifactor Authentication

CyberheistNews Vol 13 #32 [HEADS UP] Google's Huge Inactive Account Deletion - What You Need to Know

[INFOGRAPHIC] Q2 2023 Top-Clicked Phishing Test Results Favor HR-Related Subjects

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