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

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. ...

Dodging Digital Deception: How to Spot Fake Recruiters and Shield Your Career Search from Phishing Scams

Mar 12, 2024 9:28:58 AM By Stu Sjouwerman

Scammers are impersonating job-seeking platform Dice with phony employment opportunities designed to steal victims’ information.

Generative AI Results In 1760% Increase in BEC Attacks

Mar 12, 2024 9:24:38 AM By Stu Sjouwerman

As cybercriminals leverage tools like generative AI, making attacks easier to execute and with a higher degree of success, phishing attacks continues to increase in frequency.

CyberheistNews Vol 14 #11 Microsoft and OpenAI Team Up to Block Threat Actor Access to AI

Mar 12, 2024 9:00:00 AM By Stu Sjouwerman

The European Union's Unified Approach to Cybersecurity: The Cyber Solidarity Act

Mar 11, 2024 9:12:04 AM By Stu Sjouwerman

The construction of a more cyber resilient European Union (EU) took a remarkable step forward this past week as negotiators from the European Parliament and the European Council reached a ...

FBI's 2023 Internet Crime Report Highlights Alarming Trends on Ransomware

Mar 11, 2024 9:12:00 AM By Stu Sjouwerman

The specter of cybercrime continues to grow, with losses soaring to $12.5 billion in 2023, according to the recently released Internet Crime Report by the FBI's Internet Crime Complaint ...

AI and Ransomware Top the List of Mid-Market IT Cyber Threats

Mar 7, 2024 3:22:08 PM By Stu Sjouwerman

A recent report reveals a significant discrepancy in the priorities of mid-market IT departments when it comes to addressing cyber threats. It's somewhat ironic that IT professionals find ...

European Diplomats Targeted With Phony Invitations to a Wine-Tasting Party

Mar 7, 2024 3:21:56 PM By Stu Sjouwerman

Researchers at Zscaler observed a cyberespionage campaign that targeted European diplomats with malicious PDFs disguised as invitations to a wine-tasting party hosted by the Ambassador of ...

[On-Demand] Customer Spotlight: MESA’s Strategy for Building Strong Security Culture and Email Defense

Mar 7, 2024 8:55:00 AM By Stu Sjouwerman

In a world where digital threats grow more sophisticated by the day, gaining firsthand knowledge from those who have successfully bolstered their organization's defenses is invaluable.

New Research: Spike In DNS Queries Driving Phishing and Cyber Attacks

Mar 6, 2024 2:24:15 PM By Stu Sjouwerman

New analysis of DNS queries shows material growth in phishing, malware and botnets and offers insight into how many threats the average person experiences.

Chicago Man Sentenced to Eight Years in Prison for Phishing Scheme

Mar 6, 2024 2:24:11 PM By Stu Sjouwerman

A 30-year-old man from Chicago, Joseph Alexander Valdez, has been sentenced to eight years in prison for conducting a Snapchat phishing scheme that victimized more than 700 women, CBS ...

Microsoft and OpenAI Team Up to Block Threat Actor Access to AI

Mar 5, 2024 9:46:52 AM By Stu Sjouwerman

Analysis of emerging threats in the age of AI provides insight into exactly how cybercriminals are leveraging AI to advance their efforts.

CyberheistNews Vol 14 #10 [SCARY] You Knew About OSINT, But Did You Know About ADINT?

Mar 5, 2024 9:00:00 AM By Stu Sjouwerman

Phishing Kit Targets the FCC and Crypto Exchanges

Mar 5, 2024 6:43:11 AM By Stu Sjouwerman

Researchers at Lookout have discovered a sophisticated phishing kit that’s targeting employees at the US Federal Communications Commission (FCC), as well as employees of cryptocurrency ...

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