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

U.S. Utilities Face Phishing Attacks Intent on Gaining Remote Access

Last month saw a number of utility sector businesses targeted with spear phishing attacks that utilize a new remote access Trojan (RAT) that provides attackers with admin access.

Georgia Gov. Kemp Orders Cybersecurity Training For State Employees After Crippling Attacks

StateScoop reports: "Citing several recent ransomware attacks at the state and local levels, Georgia Gov. Brian Kemp this week issued an executive order instructing state employees to ...

A State-of-the-Art Spoof  (or, Why Turning Your Users Into Grammar Nazis Won't Keep the Bad Guys Out)

By Eric Howes, KnowBe4 Principal Lab Researcher. Malicious actors are becoming very skilled at exploiting popular online services that enjoy the familiarity and trust of millions of ...

Please Vote For KnowBe4: Computing Security Awards

We're excited to be a finalist for the 2019 Computing Security Awards in the UK! They are inviting everyone to vote for their favorite vendors. It would be highly appreciated if you could ...

Lateral Phishing Affects One in Seven Organizations

A survey by Barracuda found that one in seven organizations experienced lateral phishing attacks over the course of seven months, and that 42% of these attacks were not reported by ...

Social Engineering Used To Establish Shady Bulletproof Hosting

Brian Krebs has reported that a dubious Internet provider, “Resnet,” was renting out tens of thousands of residential IP addresses to be used as proxies by fraudsters and spammers. ...

Ransomware Hits Fortnite Players

DarkReading reports: "Ransomware masquerading as game "cheats" is hitting Fortnite players. Fortunately, there are ways to recover without paying a ransom." Similar to phishing attacks on ...

Employee Error Behind Half of Industrial Network Incidents

A new report by Kaspersky shows that employee mistakes are the leading cause of industrial cybersecurity incidents. Last year, 52% of such incidents were the result of human error.

Is The Ransomware Debate Over? To Pay Or Not To Pay, The Conference Of Mayors Made Up Their Mind

The long-standing argument over whether or not to pay may have come to an end, with a resolution from the U.S. Conference of Mayors calling on cities to not pay up.

Gift Cards Are Now the #1 Business Email Compromise Cash-Out Mechanism for Fraudsters

Overtaking wire transfers and payroll diversion, gift cards have taken a material lead as one of the easiest and least recoverable ways to cash out of a fraud scam.