KnowBe4 Blog

Keeping you informed. Keeping you aware.
Stay on top of the latest in human and agent security including social and prompt engineering, ransomware and phishing attacks.

Stu Sjouwerman

Founder and Executive Chairman

Stu Sjouwerman (pronounced “shower-man”) is the Founder and Executive Chairman 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.


Recent Posts

[Heads-up] The U.S. Launched A Cyber Attack On Iran, And We're Expecting Spear Phishing Strike Backs

The tension in the Middle-East apparently prompted a game-changing move by the U.S. President. Washington Post sources say exactly 10 years after Stuxnet, the President approved a ...

UK Forensic Crime Labs Shut Down Due To Ransomware Attack

Every police force across England and Wales has been forced to prioritize evidence for forensic testing following a criminal cyber attack affecting one of the primary forensic service ...

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

This blog post has been superseded by a more recent one.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

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?

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

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

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

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...

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

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.