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

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 ...

[DISINFORMATION ALERT] Israel-Hamas war causes deluge of dis- and misinformation

Oct 11, 2023 8:44:20 AM By Stu Sjouwerman

Social media, and it seems particularly X (former Twitter) seems to drown in an almost instant deluge of disinformation caused by the horrendous Israel-Hamas war that broke out last ...

Smishing Triad Threat Actor Sets Its Sights on the UAE

Oct 10, 2023 4:05:50 PM By Stu Sjouwerman

Resecurity warns that the Smishing Triad threat actor has “vastly expanded its attack footprint” in the United Arab Emirates (UAE).

CyberheistNews Vol 13 #41 [Risky New Data] More Than Half of Phishing Scams Now Use Obfuscation

Oct 10, 2023 9:00:00 AM By Stu Sjouwerman

74% of CEOs Concerned About Their Organization's Ability to Protect Against Cyber Attacks, Despite Seeing Cybersecurity as Critical

Oct 10, 2023 8:22:31 AM By Stu Sjouwerman

According to the recent The Cyber-Resilient CEO report released by IT services and consulting agency Accenture, a staggering 74% of CEOs have expressed concerns about their organizations' ...

Security Awareness Training Blog

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Stu Sjouwerman

Books

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Subscribe to CyberheistNews, Now Available on LinkedIn!

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

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

53% of Organizations Experienced Cyber Attacks

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

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

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

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

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

Business Email Compromise Attempts Skyrocket in the Last Year

[INFOGRAPHIC] KnowBe4’s SecurityCoach: Top 10 Integrations

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

[DISINFORMATION ALERT] Israel-Hamas war causes deluge of dis- and misinformation

Smishing Triad Threat Actor Sets Its Sights on the UAE

CyberheistNews Vol 13 #41 [Risky New Data] More Than Half of Phishing Scams Now Use Obfuscation

74% of CEOs Concerned About Their Organization's Ability to Protect Against Cyber Attacks, Despite Seeing Cybersecurity as Critical

Register for KB4-CON EMEA 2023 Now!

Ransomware Attack Dwell Time Drops by 77% to Under 24 Hours

One Out of Five Organizations Must Improve Their Security Posture to be Eligible for Cyber Insurance

Healthcare Industry Witnesses 279% Increase in Business Email Compromise Attacks in 2023

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