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

[New!] Check Out These Powerful New KnowBe4 AI Features

You do not want to miss this one! You can now see our AI Defense Agents (AIDA) live in a demo, now that they are released. Customers can now fight AI with AI !

Chinese Threat Actor Targets Black Friday Shoppers With Phishing Campaign

Researchers at EclecticIQ warn that the financially motivated Chinese threat actor “SilkSpecter” has launched a phishing campaign targeting Black Friday shoppers across Europe and the US.

U.K. Residents are Victims of the Latest Phishing Scam Targeting Starbuck Customer Credentials

Analysis of a new phishing attack highlight just how easy it can be to spot these kinds of attacks if recipients were properly educated.

Phishing Emails Use SVG Files to Avoid Detection

Phishing emails are increasingly using Scalable Vector Graphics (SVG) attachments to display malicious forms or deliver malware, BleepingComputer reports.

Phishing Attacks Exploits the Open Enrollment Period

A phishing campaign is impersonating HR to target employees who are making annual insurance changes during the open enrollment period, according to researchers at Abnormal Security.

Ransomware Gangs Evolve: They're Now Recruiting Penetration Testers

A new and concerning cybersecurity trend has emerged. According to the latest Q3 2024 Cato CTRL SASE Threat Report from Cato Networks, ransomware gangs are now actively recruiting ...

Out of 29 Billion Cybersecurity Events, Phishing was the Primary Method of Initial Attack

The newly released single largest analysis of cyber attacks across all of 2023 show a strong tie between the use of phishing and techniques designed to gain credentialed access.

Threat Actors are Sending Malicious QR Codes Via Snail Mail

The Swiss National Cyber Security Centre (NCSC) has warned of a QR code phishing (quishing) campaign that’s targeting people in Switzerland via physical letters sent through the mail, ...