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

Human-Crafted Phishing Emails Only Three Percent More Successful Than AI-Generated Ones, According To IBM

Oct 26, 2023 11:11:24 AM By Stu Sjouwerman

Red teamers at IBM X-Force warn that AI-generated phishing emails are nearly as convincing as human-crafted ones, and can be created in a fraction of the time. The researchers tricked ...

[On-Demand Webinar] The Role of AI in Email Security and How Real-Time Threat Intelligence Can Supercharge Your SOC Team

Oct 26, 2023 10:30:22 AM By Stu Sjouwerman

In response to improved email security measures, cybercriminals have pivoted to more advanced attack methods, namely artificial intelligence (AI), that bypass existing protections. But ...

[Live Demo] Ridiculously Easy Security Awareness Training and Phishing

Oct 26, 2023 8:00:00 AM By Stu Sjouwerman

Old-school awareness training does not hack it anymore. Your email filters have an average 7-10% failure rate; you need a strong human firewall as your last line of defense.

FBI Warns of North Korean Social Engineering Tactics and Recruitment/Hiring of IT Workers

Oct 25, 2023 2:29:42 PM By Stu Sjouwerman

The U.S. Federal Bureau of Investigation (FBI) and South Korea’s Ministry of Foreign Affairs have issued an advisory offering guidance to “the international community, the private sector, ...

Leadership Less Involved in Cyber-Preparedness Despite a Majority of Orgs Thinking Data Loss from a Cyber Attack Likely in the Next 12 Months

Oct 24, 2023 4:37:42 PM By Stu Sjouwerman

You probably expect executive leadership to not just support cybersecurity efforts, but to be involved. New data shows organizations have a way to go until this is a reality.

Most Organizations Believe Malicious Use of AI is Close to Evading Detection

Oct 24, 2023 4:37:22 PM By Stu Sjouwerman

As organizations continue to believe the malicious use of artificial intelligence (AI) will outpace its defensive use, new data focused on the future of AI in cyber attacks and defenses ...

Functionality Misuse from Multiple Legitimate Company Websites is the Latest Example of ‘Site Hopping’

Oct 24, 2023 4:37:06 PM By Stu Sjouwerman

One Out of Every Eight Emails Found to be Malicious as Attackers Continue to Hone Their Skills

Oct 24, 2023 4:36:46 PM By Stu Sjouwerman

An increase in the number of malicious emails being sent is resulting in more phishing attacks reaching inboxes. New data clarifies the factors that determine their malicious nature and ...

Vietnam-Based Cyber Groups Using Fake Job Postings to Deliver Malware

Oct 24, 2023 4:36:29 PM By Stu Sjouwerman

Several cybercriminal groups based in Vietnam are using fake job postings to trick users into installing malware, according to researchers at WithSecure. The researchers are tracking ...

CyberheistNews Vol 13 #43 Phishing Attacks Surge by 173% In Q3, 2023; Malware Threats Soar by 110%

Oct 24, 2023 9:00:00 AM By Stu Sjouwerman

A Brief History of Phishing, and Other Forms of Social Engineering

Oct 23, 2023 10:23:52 AM By Stu Sjouwerman

Social engineering attacks have a very long history, though the Internet has made it easier to launch these attacks en masse, according to Sean McNee at DomainTools. McNee points to an ...

QR Code Phishing on the Rise: The Alarming Findings From the Hoxhunt Challenge

Oct 20, 2023 1:46:05 PM By Stu Sjouwerman

As the digital landscape continues to evolve, so do the tactics of cybercriminals. The Hoxhunt Challenge, a comprehensive study conducted across 38 organizations spanning nine industries ...

Phishing-as-a-Service: As Simple As Uploading A Logo

Oct 19, 2023 10:36:00 AM By Stu Sjouwerman

Researchers at Fortra are tracking “Strox,” one of the most popular phishing operations of the past two years. Users of Strox phishing kits can easily create phishing campaigns by simply ...

CISA, NSA, FBI, and MS-ISAC Release Phishing Prevention Guidance

Oct 19, 2023 9:56:01 AM By Stu Sjouwerman

October 18, 2023, the Cybersecurity Infrastructure and Security Agency (CISA), the National Security Agency (NSA), the Federal Bureau of Investigation (FBI), and the Multi-State ...

Phishing Attacks Surge By 173% In Q3, 2023; Malware Threats Soar By 110%

Oct 18, 2023 2:30:05 PM By Stu Sjouwerman

A new report from Vade Secure has found that phishing attacks rose by 173% in the third quarter of 2023, while malware threats have increased by 110%.

Cyber Insurers Note Ransomware Claims Rose Significantly in the First Half of 2023

Oct 17, 2023 2:40:56 PM By Stu Sjouwerman

Cyber insurers are claiming that cybercriminals made ransomware attacks popular again in 2023 after a slight break in 2022.

Summit Sabotage: Malicious Phishing Campaign Hits Female Political Leaders Using Social Engineering

Oct 17, 2023 2:40:52 PM By Stu Sjouwerman

A threat actor dubbed “Void Rabisu” used social engineering to target attendees of the Women Political Leaders (WPL) Summit that was held in Brussels from June 7 to 8, 2023, Trend Micro ...

CyberheistNews Vol 13 #42 [DISINFO ALERT]: Israel-Hamas War Causes a Deluge of Dis- And Misinfo

Oct 17, 2023 9:00:00 AM By Stu Sjouwerman

Phishing Tests Start The Virtuous Cycle Of A Strong Security Culture

Oct 17, 2023 7:00:06 AM By Stu Sjouwerman

Phishing tests are the catalyst to achieve a sustainable security culture within your organization. They are actually the start of a virtuous cycle that helps you move up to the highest ...

Exponential Deepfake Porn is Out of Control And a Huge Security Risk

Oct 16, 2023 10:26:47 AM By Stu Sjouwerman

This year, the world of deepfake pornography is growing at an alarming rate, thanks to advances in AI and ML. Deepfakes make it look like victims are part of explicit content without ...

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