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

Louisiana Declares Cybersecurity State of Emergency

A series of ransomware attacks on school district systems leads the governor to declare the state's first cybersecurity state of emergency.

OSINT – a Hacker’s First Asset in Targeted Attacks

Before a cybercriminal wants to engage in a targeted attack against a particular organization or individual, they’d like to know a few things first. That’s where OSINT comes into play.

New Study Finds Employees Pose the Greatest Cybersecurity Risk

While historically being seen as an organization’s greatest asset, the latest report from the analyst firm Ponemon cites humans as the weakest link.

Netflix's New "The Great Hack" Reminds Us -- If you Don't Pay For the Product You *Are* The Product

Last night, Netflix premiered “The Great Hack” which is based on the Cambridge Analytica scandal. They reminded us of the golden expression: “If you don't pay for the product you are the ...

Romanian Cybercriminals Sentenced for Phishing Campaign

Our friends at Phishlabs wrote: "This week, the Department of Justice for the U.S. Attorney’s Office for the Northern District of Georgia announced the final of three sentences to be ...

BEC = “Because it’s Easy Cash” Scammers Trick Employees Into Giving Away Customer Info

Business Email Compromise—also known as CEO Fraud—scammers are now targeting a company's customers using a new indirect attack method designed to collect information on future scam ...

This Year, Phishing Causes Losses of $17,700 per minute And Ransomware Attacks Will Cost $22,184 Per Minute

Global losses to cybercrime total $1.5 trillion per year, which amounts to $2.9 million per minute, a new report by RiskIQ shows. Some of the largest companies are losing $25 each minute ...

A Phishing Campaign Evades Email Gateways via WeTransfer

A phishing campaign is abusing the legitimate file hosting site WeTransfer to get malicious links through email filters, according to Jake Longden at Cofense. The attackers send real ...

80% of Organizations Don’t Use DMARC Making Them Susceptible to Email Spoofing

DMARC’s ability to confirm a sending domain’s identity seems like a no-brainer, and yet most organizations aren’t taking advantage of this protective service to stop phishing attacks.

Ransomware Attacks Costs Nearly Triple in 2019 to over $36K Per Attack

The latest data from ransomware recovery vendor, Coveware, outlines the current state of the cost, duration, and recovery rate of ransomware attacks today.