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

Initial Access Brokers Leverage Legitimate Google Ads to Gain Malicious Access

Feb 2, 2023 4:31:56 PM By Stu Sjouwerman

A threat actor tracked as DEV-0569 appears to be using a combination of Google Ads and impersonated websites to compromise credentials and distribute malware to gain network access.

BEC Group Launches Hundreds of Campaigns

Feb 2, 2023 9:14:15 AM By Stu Sjouwerman

A business email compromise (BEC) gang has launched more than 350 attacks against organizations in the US, according to researchers at Abnormal Security. The threat actor, which Abnormal ...

KnowBe4 Wins Winter 2023 "Best of" Awards From TrustRadius in Multiple Categories

Feb 1, 2023 1:55:26 PM By Stu Sjouwerman

KnowBe4 is proud to be recognized by TrustRadius in the “Best Of” Awards for overall, best feature set, best relationship, and best value for price in the Security Awareness Training ...

[On-Demand] Artificial Intelligence, ChatGPT and Cybersecurity: A Match Made in Heaven or a Hack Waiting to Happen?

Feb 1, 2023 9:24:06 AM By Stu Sjouwerman

Artificial intelligence (AI) is no longer science fiction.

Scammers Impersonate Financial Advisors Through Social Media Platforms

Feb 1, 2023 9:13:55 AM By Stu Sjouwerman

A large scam campaign is targeting users on LinkedIn and other social media platforms posing as financial advisors, according to researchers at DomainTools. The researchers explain that ...

Travel-Themed Phishing Attacks Lure Victims with Promises of Free Tickets, Points, and Exclusive Deals

Jan 31, 2023 3:04:34 PM By Stu Sjouwerman

New analysis of December and January emails shows massive spikes in attacks aimed at stealing personal information and credit cards under the guise of once-in-a-lifetime travel deals.

OneNote Attachments Used as Phish Hooks

Jan 31, 2023 3:04:28 PM By Stu Sjouwerman

Threat actors are using malicious attachments in OneNote in order to distribute malware, BleepingComputer reports. The attackers attach VBS files that instruct the user to double-click on ...

Ransomware Targets are Getting Larger and Paying More as Fewer Victims Are Paying the Ransom

Jan 31, 2023 3:04:22 PM By Stu Sjouwerman

New data showcasing the state of ransomware shows that while organizations are likely getting better at recovery (and not paying the ransom), cybercriminals are shifting focus to ensure ...

Microsoft OneNote Attachments Become the Latest Method to Spread Malware

Jan 31, 2023 3:04:16 PM By Stu Sjouwerman

With Microsoft disabling macros by default on Office documents, cybercriminals are left needing another means to launch malware that’s victim-supported by default.

CyberheistNews Vol 13 #05 [Eye Opener] Is Cybercrime the World's Third Largest Economy After the U.S. and China?

Jan 31, 2023 9:00:00 AM By Stu Sjouwerman

Russian and Iranian Spear Phishing Campaigns are Running Rampant in the UK

Jan 30, 2023 8:52:25 AM By Stu Sjouwerman

The UK’s National Cyber Security Centre (NCSC) has described two separate spear phishing campaigns launched by Russia’s SEABORGIUM threat actor and Iran’s TA453 (also known as Charming ...

Hacker's Movie Guide: The Complete List of Hacker and Cybersecurity Movies

Jan 27, 2023 6:36:05 AM By Stu Sjouwerman

Is alert fatigue getting to you? I found a guide that allows you some well-deserved personal downtime, and still has something to do with work so that you can justify getting away with ...

Stu's Law: "You get the future you ignore"

Jan 26, 2023 9:12:10 AM By Stu Sjouwerman

I have read a lot of Sci-fi. Thousands of books actually. You can't help but start recognizing patterns of how the future might look like. Many Sci-fi books were made into movies. One of ...

Phishing Campaign Impersonates Japanese Rail Company

Jan 25, 2023 10:49:17 AM By Stu Sjouwerman

Researchers at Safeguard Cyber describe a phishing campaign that’s posing as a Japanese rail ticket reservation company.

2022 Report Confirms Business-Related Phishing Emails Trend [INFOGRAPHIC]

Jan 24, 2023 1:14:53 PM By Stu Sjouwerman

KnowBe4's latest reports on top-clicked phishing email subjects have been released for 2022 and Q4 2022. We analyze 'in the wild' attacks reported via our Phish Alert Button, top subjects ...

CyberheistNews Vol 13 #04 [Heads Up] Unusual Blank-Image Phishing Attacks Impersonate DocuSign

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

New QR Code Phishing Campaign is Impersonating the Chinese Ministry of Finance

Jan 24, 2023 8:36:44 AM By Stu Sjouwerman

Researchers at Fortinet warn that a phishing campaign is impersonating the Chinese Ministry of Finance. The phishing emails contain a document with a QR code that leads to a ...

Cybercrime The World’s Third Largest Economy After the U.S. and China

Jan 21, 2023 9:23:38 AM By Stu Sjouwerman

Cybersecurity Ventures released a new report that showed cybercrime is going to cost the world $8 trillion USD in 2023.

Ransomware Has SMBs Reprioritizing Their Cybersecurity Spending to Combat Attacks

Jan 20, 2023 9:57:48 AM By Stu Sjouwerman

New data shows that SMBs can clearly see where they have cybersecurity issues and are taking great strides to put their devoted budget to security technology and services that actually ...

The Current State of Cybersecurity Should Fear AI Tools Like ChatGPT

Jan 20, 2023 9:57:35 AM By Stu Sjouwerman

Malicious use of the text-based AI has already begun to be seen in the wild, and speculative ways attackers can use ChatGPT may spell temporary doom for cybersecurity solutions.

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