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

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 ...

Sophos: Over 75% of Cyber Incidents Target Small Businesses

Mar 15, 2024 10:31:48 AM By Stu Sjouwerman

New analysis of incident data shows threat actors are evolving their attack techniques to take advantage of budget and resource-strapped small businesses.

Organizations Are Vulnerable to Image-based and QR Code Phishing

Mar 14, 2024 10:23:31 AM By Stu Sjouwerman

A majority of organizations have a false sense of security regarding their resistance to phishing attacks, according to a new report from researchers at IRONSCALES and Osterman Research.

Despite Feeling Prepared for Image-Based Attacks, Most Organizations Have Been Compromised by Them

Mar 14, 2024 10:20:00 AM By Stu Sjouwerman

With QR-code phishing attacks on the rise, new data sheds light on just how unprepared organizations actually are in stopping and detecting these device-shifting attacks.

New Research: BEC Attacks Rose 246% in 2023

Mar 14, 2024 10:18:23 AM By Stu Sjouwerman

Business email compromise (BEC) attacks surged by 246% last year, according to researchers at ReliaQuest.The researchers believe the increase is due to widely available phishing kits that ...

Compromised Credentials Postings on the Dark Web Increase 20% in Just One Year

Mar 13, 2024 9:31:15 AM By Stu Sjouwerman

Data trends show a clear upward momentum of posts from initial access brokers on the dark web, putting the spotlight on what may become cybersecurity’s greatest challenge.

AI-Driven Voice Cloning Tech Used in Vishing Campaigns

Mar 13, 2024 9:30:10 AM By Stu Sjouwerman

Scammers are using AI technology to assist in voice phishing (vishing) campaigns, the Better Business Bureau (BBB) warns. Generative AI tools can now be used to create convincing ...

I am announcing AIDA: Artificial Intelligence Defense Agents!

Mar 12, 2024 1:52:05 PM By Stu Sjouwerman

AI is evolving at breakneck speed. Elon Musk recently said: "I've never seen any technology advance faster than AI compute. We are on the edge of the biggest technology revolution ever. ...

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