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

Worry About Phishing, Not Malware!

With so many security strategies revolving around the detection of malware, organizations forget the primary source of all their worries – phishing.

[Heads-up] Now In The Wild: New Super Evil Rootkit Survives Even "Nuke From Orbit" And HD Swap

This thing is a nightmare that escaped into daylight. The Russian GRU—aka Fancy Bear—probably was riveted reading the Wikileaks CIA Vault 7 UEFI Rootkit docs (PDF) and built one of these ...

Kevin Mitnick weighs in on Facebook's big security breach

It was all over the news, and CNBC interviewed KnowBe4's very own Chief Hacking Officer Kevin Mitnick (note the StreetCred box on the right).

[InfoGraphic] 20 Ways to Block Mobile Attacks

To start your National Cyber Security Awareness Month (NCSAM) here is a goodie for your users to kick things off.

Targeted Attacks Replace Spam Campaigns

Spam campaigns are all but dead. But lucrative targeted low-risk, high-yield cyber-attacks have risen to take their place, according to the European Union law enforcement agency Europol.

The Cybercrime Economy Makes It Impossible to Stop

The operation run by botnet author Peter Levashov demonstrates how easy it is for would-be criminals to get into the business.

The Human Element is Essential to Safe Social Networking

This is common wisdom, but it bears repeating, because common wisdom is easily overlooked. People are often called an organization's greatest asset. They're also its greatest ...

Holiday Threat No. 1: Evil Twin Domains With A "Trusted" SSL/TSL Certificate

As the holiday season approaches, cybercriminals are set to scam your users out of their personal money but also your organizational budget.

The Lowly USB Drive Remains A Critical Cyberthreat

Curtin Franklin at Darkreading correctly observed: "USB thumb drives may be used less frequently than before, but they are still commonly used as infection vectors for a wide variety of ...