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

Nearly Every Organization Has Had an Insider-Caused Data Breach in the Last Year

Jul 19, 2021 1:45:35 PM By Stu Sjouwerman

Whether it’s from an accidental leak of data or falling victim to a phishing attack, new data from email security vendor Egress puts the insider’s role in breaches into critical ...

Facebook Disrupts Iranian Social Engineering Operation

Jul 19, 2021 9:38:15 AM By Stu Sjouwerman

Facebook has taken down an operation by Iranian hackers targeting military, defense, and aerospace entities, particularly focused on the US.

[On-Demand Webinar] 2021 Phishing By Industry Benchmarking Report

Jul 19, 2021 8:00:00 AM By Stu Sjouwerman

As a security leader, you have a lot on your plate. Even as you increase your budget for sophisticated security software, your exposure to cybercrime keeps going up. IT security seems to ...

KnowBe4 Receives Four ISO Certifications From ISOQAR, A Certifying Organization

Jul 17, 2021 9:50:38 AM By Stu Sjouwerman

KnowBe4, the provider of the world’s largest security awareness training and simulated phishing platform, announced that it has received four certifications – ISO 27001:2013, ISO ...

84% of Organizations Experienced Ransomware and Phishing-Related Security Events in the Last 12 Months

Jul 15, 2021 10:44:04 AM By Stu Sjouwerman

New research from Trend Micro and Osterman Research highlights where organizations are strongest and weakest at stopping phishing attacks resulting in ransomware.

CISA Publishes Darkside Malware Analysis Report and Updated Best Practice Guidance Against Ransomware

Jul 15, 2021 10:44:00 AM By Stu Sjouwerman

New details provide valuable insight into exactly how Darkside works to compromise and encrypt systems, with valuable guidance to avoid becoming a victim of ransomware.

Cryptocurrencies and Email Extortion Trends

Jul 15, 2021 10:04:39 AM By Stu Sjouwerman

Researchers at GreatHorn have found that 98.7% of extortion emails ask for payment in Bitcoin. Most of these emails aren’t targeted, but enough people will likely fall for them that the ...

Phishing Campaign Uses Novel Technique to Deliver Malware

Jul 14, 2021 11:25:51 AM By Stu Sjouwerman

Researchers at McAfee warn that a phishing campaign is delivering malware via Word documents that don’t contain any malicious code. When a user opens the document and enables content, the ...

New York Department of Financial Services Issues New Guidance to Financial Services Orgs to Counter Ransomware

Jul 14, 2021 9:23:40 AM By Stu Sjouwerman

NYDFS offers up sound best practices in addition to their recently released Cyber Insurance Risk Framework based on recent attack investigations, finding repeated use of “the same handful ...

Year-Long Phishing Campaign Targets Energy, Oil & Gas Companies Using Spoofed B2B Correspondence

Jul 14, 2021 9:23:26 AM By Stu Sjouwerman

Uncovered by the research team at cloud protection vendor Intezer, this new phishing campaign seeks to steal information and position each victim as the foothold to spear phish additional ...

Spear Phishing Campaign Targets Energy Companies

Jul 13, 2021 10:29:13 AM By Stu Sjouwerman

Researchers at Intezer have spotted a phishing campaign that’s targeting energy companies in South Korea, the United States, the United Arab Emirates, and Germany. Most of the targets are ...

CyberheistNews Vol 11 #27 [EYE OPENER] They're Here... The Ransomware Ecosystem Now Has Criminal VC Investors

Jul 13, 2021 10:20:04 AM By Stu Sjouwerman

Ransomware Attacks Put Singapore Organizations at Risk of Violation of the Personal Data Protection Act

Jul 12, 2021 1:46:47 PM By Stu Sjouwerman

A new court decision sets precedence for all Singapore organizations where ransomware attacks – even without data exfiltration – may be subject to financial noncompliance penalties.

Counterterrorism Strategies Could Be the Key to Stopping Ransomware

Jul 12, 2021 1:46:00 PM By Stu Sjouwerman

With ransomware players, sophistication, effectiveness, and cost all on the rise, it may be time for us to take a page from counterterrorism to make it more difficult for cybercriminal ...

Phishbait Follows Current Events

Jul 12, 2021 9:49:35 AM By Stu Sjouwerman

Crisis draws opportunistic criminals, and the Kaseya ransomware incident is no different. Kaseya’s updates on the incident have included repeated warnings not to be taken in by emails or ...

KnowBe4 Fresh Content Updates from June

Jul 9, 2021 10:13:30 AM By Stu Sjouwerman

Here are important fresh content updates to share with you that happened in the month of June.

[On-Demand Webinar] Implement DMARC the Right Way to Keep Phishing Attacks Out of Your Inbox

Jul 9, 2021 8:00:00 AM By Stu Sjouwerman

DMARC, SPF, and DKIM are global anti-domain-spoofing standards, which can significantly cut down on phishing attacks. Implemented correctly they allow you to monitor email traffic, ...

Ransomware Attacks from Within Russia So Impactful, U.S. Government Says They Will Take Action If Russia Won’t

Jul 8, 2021 9:40:10 AM By Stu Sjouwerman

In light of recent ransomware attacks, the White House Press Secretary Jen Psaki stated this week that the Russian government needs to address ransomware groups stemming from Russia.

How REvil Works: A Look Inside the World’s Most Famous Ransomware-as-a-Service

Jul 8, 2021 9:40:06 AM By Stu Sjouwerman

With well-known companies impacted by REvil in every sector, including tech, it’s time to get a better understanding of who they are and what makes their ransomware so successful.

Social Engineering and Organizational Culture

Jul 8, 2021 9:40:03 AM By Stu Sjouwerman

Consistent awareness training is necessary to fend off phishing attacks, according to Keatron Evans, a principal security researcher, instructor, and author with Infosec. In an interview ...

Security Awareness Training Blog

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