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

Your KnowBe4 Fresh Content Updates from March 2024

Mar 29, 2024 8:00:00 AM By Stu Sjouwerman

Check out the 35 new pieces of training content added in March, alongside the always fresh content update highlights, events and new features.

[New Feature] Start Coaching Your Users in Real Time With the New Google Chat Integration for KnowBe4's SecurityCoach

Mar 28, 2024 9:17:30 AM By Stu Sjouwerman

Attention Google Workspace users! You’ve asked, and we’ve delivered, integrating KnowBe4's SecurityCoach with Google Chat.

The Number of New Pieces of Malware Per Minute Has Quadrupled in Just One Year

Mar 27, 2024 1:03:56 PM By Stu Sjouwerman

The threat of novel malware is growing exponentially, making it more difficult for security solutions to identify attachments and links to files as being malware.

A Simple 'Payment is Underway' Phishing Email Downloads RATs from AWS, GitHub

Mar 27, 2024 1:03:46 PM By Stu Sjouwerman

Analysis of a new initial access malware attack shows how simple these attacks can be while also proving that malware can reside on legitimate repositories.

[SCARY] Research Shows Weaponized GenAI Worm That Gets Distributed Via A Zero Click Phishing Email

Mar 27, 2024 6:52:52 AM By Stu Sjouwerman

Israeli researchers came out with a hell of a thing just now. Here is a bit of the abstract and a video. YIKES.

It’s Official: Cyber Insurance is No Longer Seen as a 'Safety Net'

Mar 26, 2024 11:38:51 AM By Stu Sjouwerman

A new report on the state of email security sheds some light on how organizations are viewing and approaching cyber insurance as they shift strategy toward being cyber resilient.

New Phishing-as-a-Service Kit Attempts to Bypass MFA

Mar 26, 2024 11:38:48 AM By Stu Sjouwerman

A Phishing-as-a-Service (PhaaS) platform called “Tycoon 2FA” has surged in popularity over the past several months, according to researchers at Sekoia. The phishing kit is notable for its ...

CyberheistNews Vol 14 #13 If Social Engineering Accounts for Up to 90% of Attacks, Why Is It Ignored?

Mar 26, 2024 9:04:38 AM By Stu Sjouwerman

[New Research] KnowBe4's Report is a Call to Action for Global Organizations to Improve Their Security Culture

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

We’re thrilled to announce the release of the 2024 Security Culture Report, which dives deep into how security measures affect organizations and the way employees act and feel at work.

The Average Malicious Website Exists for Less Than 10 Minutes

Mar 25, 2024 1:50:14 PM By Stu Sjouwerman

A new Chrome update brings to light Google findings about malicious websites that have serious implications on detecting malicious links, spoofed brands and the use of legitimate web ...

Cloud-Conscious Cyber Attacks Spike 110% as Threat Groups Sharpen their Attack Skills

Mar 25, 2024 8:00:00 AM By Stu Sjouwerman

New data shows increased expertise in leveraging and exploiting cloud environments.

FBI: Losses Due to Cybercrime Jump to $12.5 Billion as Phishing Continues to Dominate

Mar 25, 2024 8:00:00 AM By Stu Sjouwerman

The FBI’s Internet Crime Complaint Center (IC3) newly-released Internet Crimes Report provides an unbiased big picture of the cyber crimes that were the most used and most successful.

Ransomware Group “RA World” Changes Its’ Name and Begins Targeting Countries Around the Globe

Mar 21, 2024 11:37:10 AM By Stu Sjouwerman

The threat group "RA World" (formerly RA Group) has shifted from country-specific ransomware attacks to include specific industries via a new - not previously seen - method of extortion.

[Heads-Up] Phishing Campaign Delivers VCURMS RAT

Mar 21, 2024 8:37:17 AM By Stu Sjouwerman

Researchers at Fortinet are tracking a phishing campaign that’s distributing a new version of the VCURMS remote access Trojan (RAT).

[Heads Up] Reinforce Your Defenses Against Rising Supply-Chain Cyber Threats

Mar 20, 2024 10:57:05 AM By Stu Sjouwerman

James Rundle at The Wall Street Journal today reported that in response to escalating supply-chain cyberattacks, companies are intensifying their scrutiny over suppliers to protect ...

Phishing Tops 2023’s Most Common Cyber Attack Initial Access Method

Mar 19, 2024 1:18:05 PM By Stu Sjouwerman

New analysis shows that the combination of phishing, email, remote access, and compromised accounts are the focus for most threat actors.

State-Sponsored Russian Phishing Campaigns Target a Variety of Industries

Mar 19, 2024 1:18:02 PM By Stu Sjouwerman

Researchers at IBM X-Force are monitoring several ongoing phishing campaigns by the Russian state-sponsored threat actor ITG05 (also known as “APT28” or “Fancy Bear”). APT28 has been tied ...

Phishing-as-a-Service Platforms LabHost and Frappo Help Threat Actors Target Canadian Banks

Mar 19, 2024 9:41:29 AM By Stu Sjouwerman

Analysis of attacks on banking institutions in Canada can be almost perfectly tied to the use and availability of phishing-as-a-service platforms, indicating increased use by threat ...

CyberheistNews Vol 14 #12 [HEADS UP] I Am Announcing AIDA: Artificial Intelligence Defense Agents!

Mar 19, 2024 9:00:00 AM By Stu Sjouwerman

CISA: Healthcare Organizations Should Be Wary of Increased Ransomware Attacks by ALPHV Blackcat

Mar 18, 2024 10:14:00 AM By Stu Sjouwerman

A joint cybersecurity advisory published last week discusses ransomware attack impacts on healthcare, along with ALPHV’s attack techniques, indicators of compromise (IoCs) and proper ...

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