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

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.

Unusual Blank-Image Phishing Attacks Impersonate DocuSign

Jan 20, 2023 8:59:19 AM By Stu Sjouwerman

An unusual phishing technique has surfaced this week. Avanan, a Check Point Software company, released a blog Thursday morning detailing a new attack in which hackers hide malicious ...

[Eye Popper] Ransomware Victims Refused To Pay Last Year

Jan 20, 2023 7:03:01 AM By Stu Sjouwerman

Finally some good news from the ransomware front! Despite bad actors launching a number of ransomware campaigns throughout 2022, organizations refused to submit and paid criminals an ...

Phishing For Industrial Control Systems

Jan 19, 2023 8:42:58 AM By Stu Sjouwerman

Mandiant has published a report describing phishing emails that have breached organizations in the industrial sector. Mandiant explains that the majority of phishing attacks are ...

The Amazing Thing Is that DHL Phishing Campaigns STILL Work

Jan 18, 2023 2:23:24 PM By Stu Sjouwerman

Researchers at Armorblox warn that a phishing campaign is impersonating DHL with fake shipping invoices.

CyberheistNews Vol 13 #03 [Eye Opener] Password Managers Can Be Hacked Lots of Ways and Yes, You Should Still Use Them

Jan 17, 2023 9:00:00 AM By Stu Sjouwerman

Spear Phishing Campaign Targets Southeast Asia

Jan 17, 2023 8:52:07 AM By Stu Sjouwerman

Researchers at Group-IB are tracking a previously unknown threat actor dubbed “Dark Pink” that’s using spear phishing attacks to target government, military, and religious organizations. ...

Cybercriminals Mimic Victim Website to Publish Exfiltrated Data on the Public Web

Jan 17, 2023 8:51:59 AM By Stu Sjouwerman

In a new twist, threat actors use a typo squatted domain name to increase the chances that stolen data will be seen by the general public after not being paid the ransom.

Government, Higher Ed, School Districts, and Healthcare Continue to be Victims of Ransomware Attacks

Jan 17, 2023 8:51:52 AM By Stu Sjouwerman

An analysis of the publicly-accessible data on ransomware attacks shows that these sectors that were a primary target of ransomware in 2021 continued as targets in 2022 to the same degree.

Cyberinsurer Beazley Introduces a $45M Cyber Catastrophe Bond to Offset Risk

Jan 17, 2023 8:51:45 AM By Stu Sjouwerman

In a move designed to protect the insurer and allow for more cyber policies to be issued, this bond is new to cyberinsurance, but not to insurers as a whole.

KB4-CON 2023 Agenda is Now Available!

Jan 17, 2023 8:40:44 AM By Stu Sjouwerman

Exciting news! We just released our full conference agenda for KB4-CON 2023, happening April 24-26 in Orlando, Florida. We’ve brought back some of your favorite sessions and have some new ...

[INFOGRAPHIC] PhishER by the Numbers

Jan 16, 2023 9:22:16 AM By Stu Sjouwerman

PhishER, KnowBe4’s industry-leading Security Orchestration, Automation and Response (SOAR) platform, takes an otherwise complicated and inefficient threat management workflow and allows ...

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