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

Social Engineering Masterstroke: How Deepfake CFO Duped a Firm out of $25 Million

Feb 5, 2024 8:47:01 AM By Stu Sjouwerman

Check out this one line for a moment...“duped into attending a video call with what he thought were several other members of staff, but all of whom were in fact deepfake recreations.”

Vendor Email Compromise Attacks Against Financial Services Surge 137% Last Year

Feb 2, 2024 1:27:13 PM By Stu Sjouwerman

Analysis of 2023 attacks shows how the financial services industry had a very bad year, with increases in both vendor email compromise (VEC) and business email compromise (BEC) attacks, ...

Microsoft Teams: The New Phishing Battlefront - How Attackers Are Exploiting Trusted Platforms

Feb 1, 2024 1:43:34 PM By Stu Sjouwerman

Attackers are abusing Microsoft Teams to send phishing messages, according to researchers at AT&T Cybersecurity.

81% of Underwriters Expect Cyber Insurance Premiums to Increase as Risk is Expected to Soar

Feb 1, 2024 1:43:29 PM By Stu Sjouwerman

New data from cyber insurance underwriters shows what they think the biggest threats will be in 2024 and what organizations should do about it.

Associated Press: "Grave peril of digital conspiracy theories."

Feb 1, 2024 12:30:27 PM By Stu Sjouwerman

The AP published a great article. This is your executive summary: Conspiracy theories have always been part of American culture, but advanced technology is making them more persuasive and ...

[Live Demo] Ridiculously Easy Security Awareness Training and Phishing

Feb 1, 2024 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.

Ransomware Payments On The Decline As Cyber Attackers Focus on The Smallest, And Largest, Organizations

Jan 31, 2024 1:52:23 PM By Stu Sjouwerman

New data for Q4 of 2023 reveals a sizable shift in the cyber threat landscape, with serious implications regarding ransomware and social engineering attacks targeting both the largest and ...

FBI Cyber Alert: Tech Support Scams Steal Cash or Precious Metals

Jan 31, 2024 1:52:13 PM By Stu Sjouwerman

The US Federal Bureau of Investigation (FBI) has issued an alert that scammers are tricking victims into converting their savings into cash or precious metals, then sending couriers to ...

[Live Demo] Customizing Your Compliance Training to Increase Effectiveness

Jan 31, 2024 8:00:00 AM By Stu Sjouwerman

Linking compliance training to specific outcomes is hard. Compliance training has a reputation for being challenging for organizations to offer, difficult to do right and employees are ...

The Percentage of Organizations Globally Struck by Ransomware Hits an All-Time High

Jan 30, 2024 1:52:43 PM By Stu Sjouwerman

Check Point’s review of ransomware shows that the percent of organizations worldwide hit by this greatest of cyberthreats rose by a whopping 33% in 2023.

Open Redirects Used to Disguise Phishing Links

Jan 30, 2024 1:52:38 PM By Stu Sjouwerman

Phishing attacks are increasingly using open redirects to evade detection by security filters, according to researchers at Trustwave.

CyberheistNews Vol 14 #05 Myth of Massive Data Breach Busted: Big Headlines Mask a Minor Threat

Jan 30, 2024 9:00:00 AM By Stu Sjouwerman

Forget Deepfake Audio and Video. Now There’s AI-Based Handwriting!

Jan 29, 2024 2:47:56 PM By Stu Sjouwerman

Researchers have developed AI technology that can mimic someone’s handwriting with only a few paragraphs of written content. Experts worry about the possibility of misuse.

Malvertising Targets Chinese-Speaking Users

Jan 29, 2024 2:47:47 PM By Stu Sjouwerman

Researchers at Malwarebytes warn that a malvertising campaign is targeting Chinese-speaking users with phony ads for encrypted messaging apps. The ads impersonate apps that are restricted ...

Identify Weak User Passwords With KnowBe4’s Enhanced Weak Password Test

Jan 29, 2024 2:45:47 PM By Stu Sjouwerman

Passwords are part of every organization’s security risk profile. Just one weak password with access to an organization’s critical systems can cause a breach, take down a network or ...

Scammers Use Airdrops to Lure Users With Phony NFTs

Jan 29, 2024 8:42:17 AM By Stu Sjouwerman

Researchers at Check Point warn that scammers are using airdrops to distribute phony non-fungible tokens (NFTs) that direct users to malicious sites.

Bravo Host Andy Cohen Scammed Out of a “Sizable” Amount of Money by Fraudsters Posing as the Bank

Jan 29, 2024 8:41:52 AM By Stu Sjouwerman

Bravo host Andy Cohen tells how he became the victim of an impersonation scam that gave scammers access to control his bank account.

Your KnowBe4 Compliance Plus Fresh Content Updates from January 2024

Jan 29, 2024 8:00:00 AM By Stu Sjouwerman

Check out the January updates in Compliance Plus so you can stay on top of featured compliance training content.

Your KnowBe4 Fresh Content Updates from January 2024

Jan 26, 2024 8:00:00 AM By Stu Sjouwerman

Check out the 37 new pieces of training content added in January, alongside the always fresh content update highlights, events and new features.

Houston, We Have a 2024 China Problem

Jan 26, 2024 7:02:27 AM By Stu Sjouwerman

Russia is not the only global problem that democracy has to deal with. The Chinese regime ran large influence campaigns, attempting mass social engineering in the U.S. 2022 midterm ...

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