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

FBI Alert: Last Week Conflict With Iran Can Cause Spear Phishing Retaliation

Jun 22, 2019 10:34:21 AM By Stu Sjouwerman

This blog post has been superseded by a more recent one. You can find this new post here.

Phishing Campaign Impersonates Email Alerts From DHS

Jun 21, 2019 10:26:51 AM By Stu Sjouwerman

An ongoing email-based phishing scam is attempting to fool recipients into opening malicious attachments disguised as notifications from the U.S. Department of Homeland Security (DHS), ...

Why Do Organizations Still Under-report Cybercrime?

Jun 21, 2019 9:48:09 AM By Stu Sjouwerman

It’s estimated that organizations aren’t engaging with Law Enforcement when becoming a victim of a cybercrime in large numbers. We cover 5 reasons why organizations don’t.

New Survey Uncovers Primary Challenges in Creating A Security Culture

Jun 20, 2019 11:18:19 AM By Stu Sjouwerman

New survey data from security vendor nCipher uncovers why organizations are finding it difficult to engage users to participate willingly in security-minded processes and behaviors.

The Fake French Minister In A Silicone Mask Who Stole Millions

Jun 20, 2019 11:04:04 AM By Stu Sjouwerman

Identity theft is said to be the world's fastest-growing crime, but in sheer chutzpah there can be few cons to match the story of the fake French minister and his silicone mask.

Maryland governor signs order to boost cybersecurity after Baltimore ransomware attack

Jun 20, 2019 10:34:50 AM By Stu Sjouwerman

The Hill reported: "Maryland Gov. Larry Hogan (R) on Tuesday signed an executive order aimed at strengthening the state’s cybersecurity capabilities, a month after a debilitating ...

Bogus Emails: 3.4 Billion Are Sent Every Day...

Jun 20, 2019 7:21:24 AM By Stu Sjouwerman

Research from Valimail shows that at least 3.4 billion phony emails are sent every day, Help Net Security reports. Despite this staggering number, most organizations still aren’t ...

How Hackers Emptied Church Coffers with a Phishing Attack and Social Engineering Phone Call

Jun 20, 2019 7:09:18 AM By Stu Sjouwerman

Cyber thieves aren't bound by a code of ethics. They look for weak targets and high rewards, which is exactly what Saint Ambrose Catholic offered.

Massive Cyberheist Bankrupts Medical Debt Collector

Jun 20, 2019 6:48:29 AM By Stu Sjouwerman

AMCA, a medical billing collections agency that was hacked last year in an incident believed to impact millions of medical patients is now seeking a federal bankruptcy court’s protection ...

Hit by Ransomware Attack, Florida City Agrees to Pay Hackers $600,000

Jun 20, 2019 6:36:50 AM By Stu Sjouwerman

It was all over the press, and even made it in the New York Times: "The leaders of Riviera Beach, Fla., looking weary, met quietly this week for an extraordinary vote to pay nearly ...

[NEW FEATURES] Branded Certificates and End User Surveys

Jun 20, 2019 6:28:47 AM By Stu Sjouwerman

We are excited to announce the release of two new features in the KnowBe4 platform. Branded Certificates and End User Training Surveys!

Subdomain Scam Hits Australian Government Seeking Money to “Register” Bogus Domain Names

Jun 20, 2019 6:21:09 AM By Stu Sjouwerman

Employees of agencies within the Australian government have been receiving targeted emails offering to register what amounts to a subdomain of a legitimate look-alike domain.

U.S. May Face Cyberwar with Russia After Purported U.S. Attacks on Russian Power Grid

Jun 18, 2019 11:19:11 AM By Stu Sjouwerman

The hacking of Russia’s power grid by the U.S. has led to a formal warning from the Kremlin that could escalate into an all-out cyberwar with attacks on U.S. businesses, agencies, and ...

CyberheistNews Vol 9 #25 [Heads-Up] The FBI Warns Against Phishing and Advises How to Spot Attacks

Jun 18, 2019 9:50:35 AM By Stu Sjouwerman

“File Deletion” Alert Becomes the Latest Scam to Compromise Office 365 Credentials

Jun 17, 2019 2:36:24 PM By Stu Sjouwerman

Attackers use simple cause for concern as the basis of a scam intent on tricking victims into offering up their Office 365 credentials.

Two-Thirds of Organizations See an Increase in Impersonation Attacks

Jun 17, 2019 2:35:49 PM By Stu Sjouwerman

Nothing fools a user like an email seemingly from someone they know. And, according to the latest data from Mimecast, the bad guys are stepping up their impersonation game.

Ransomware Halts Production For Days At Major Airplane Parts Manufacturer

Jun 15, 2019 10:55:06 AM By Stu Sjouwerman

As a result of having IT systems crippled by the ransomware infection, the company has sent home approximately 1,000 of its 1,400 workers on paid leave.

[Heads-up] Alarming Tool Creates Deep Fakes That Can Now Be Edited With A Text Editor

Jun 14, 2019 6:56:27 AM By Stu Sjouwerman

Voicemail Phishing Scam Steals Credentials

Jun 14, 2019 6:34:57 AM By Stu Sjouwerman

A new phishing campaign is asking victims to click on a link in an email to download a voicemail, My Online Security reports. When recipients click on the link, they’ll be redirected to a ...

FBI’s Advice on Spotting Phishing

Jun 14, 2019 6:28:05 AM By Stu Sjouwerman

The FBI’s Internet Crime Complaint Center (IC3) released a PSA warning that attackers are exploiting people’s trust in sites that use HTTPS. Cybersecurity training has in the past rightly ...

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