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

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 ...

Subscribe to CyberheistNews, Now Available on LinkedIn!

Oct 16, 2023 8:55:05 AM By Stu Sjouwerman

We're so excited to announce that CyberheistNews is now available on LinkedIn!

9 in 10 CISOs Report at Least One Disruptive Cyberattack in the Last Year

Oct 13, 2023 4:52:41 PM By Stu Sjouwerman

A new report sheds light on whether CISOs have been the victim of a cyber attacks, if they're every paid a ransom, their greatest cyber concerns, and much more.

60% of Organizations are Very Concerned About the Potential Impact of Ransomware Attacks

Oct 13, 2023 4:52:35 PM By Stu Sjouwerman

As the number of reported ransomware attacks increases, new data provides a fresh look at how ready organizations are for ransomware attacks.

53% of Organizations Experienced Cyber Attacks

Oct 13, 2023 4:52:30 PM By Stu Sjouwerman

As increasing percentages of businesses experience cyberattacks, new data provides details on where the most organizational risk lies.

KnowBe4 Named a Leader in the Fall 2023 G2 Grid Report for Security Orchestration, Automation, and Response (SOAR)

Oct 13, 2023 8:00:00 AM By Stu Sjouwerman

We are excited to announce that KnowBe4 has been named a leader in the Fall 2023 G2 Grid Report for Security Orchestration, Automation, and Response (SOAR) for the PhishER platform for ...

New Research: Phishing Remains the Most Popular Technique for Bad Actors

Oct 12, 2023 12:11:26 PM By Stu Sjouwerman

A report from Trustwave notes that phishing remains one of the most popular and effective techniques for attackers to gain access to organizations.

“Human-Operated” Ransomware Attacks Double in the Last Year

Oct 12, 2023 8:02:06 AM By Stu Sjouwerman

As attackers leave little-to-no traces of their attack patterns, more ransomware groups are shifting from automated attacks to manual attacks.

Harvested Credentials Are Put Up for Sale Monthly on the Dark Web at a Rate of 10,000 a Month

Oct 12, 2023 8:01:59 AM By Stu Sjouwerman

Credential harvesting has become a business in and of itself within the cybercrime economy. New insight from Microsoft details the types of attacks your organization should watch out for.

New Cyber Attack Techniques Will Not Replace Old-School Social Engineering

Oct 12, 2023 8:01:53 AM By Stu Sjouwerman

Even though there are new attack types for cybercriminals, they are still leveraging old-school attack vectors. Why? Because they still work.

Business Email Compromise Attempts Skyrocket in the Last Year

Oct 12, 2023 8:01:44 AM By Stu Sjouwerman

Threat actors launched 156,000 business email compromise (BEC) attempts per day between April 2022 and April 2023, according to Microsoft’s latest Digital Defense Report. While most of ...

[INFOGRAPHIC] KnowBe4’s SecurityCoach: Top 10 Integrations

Oct 12, 2023 8:00:00 AM By Stu Sjouwerman

Real-time security coaching helps improve your organization’s security culture by enabling real-time coaching of your users in response to risky security behaviors.

KnowBe4 Named a Leader in the Fall 2023 G2 Grid Report for Security Awareness Training

Oct 11, 2023 1:10:35 PM By Stu Sjouwerman

We are thrilled to announce that KnowBe4 has been named a leader in the latest G2 Grid Report that compares security awareness training (SAT) vendors based on user reviews, customer ...

Security Awareness Training Blog

View Topics