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

CyberheistNews Vol 12 #05 [Heads Up] DHS Sounds Alarm on New Russian Destructive Disk Wiper Attack Potential

CyberheistNews Vol 12 #05 | Feb. 1st., 2022 [Heads Up] DHS Sounds Alarm on New Russian Destructive Disk Wiper Attack Potential CNN just reported on a Jan 23 Intelligence Bulletin from the ...

Increased “Shipping Delays” Now Served as Phishbait

Attackers are exploiting pandemic-related supply-chain disruptions to launch phishing campaigns, according to Troy Gill, senior manager of threat intelligence at Zix. In an article for ...

KnowBe4 Continues to be One of Okta's Most Popular Apps in the 2021 Businesses at Work Report

We're pleased to announce that we have been featured in Okta's eighth edition of the "Business at Work" report. This report is an in-depth look into how organizations and people work ...

[On-Demand Webinar] A Data-Driven Approach for Your Third-Party Risk Management Processes

As organizations have increased their scope of vendors and partners, they have also increased their digital risk surface and are facing new challenges regarding vendor risk management. By ...

Microsoft Warns of Latest “Consent Phishing” Attack Intent on Reading Your Email

Rather than steal your user’s credentials, this latest attack takes the OAuth route to gain access to the victim’s mailbox. This gives cybercriminals continual access, regardless of ...

Dark Web Service Sells Access to Compromised Accounts and Browser Sessions

When we hear about compromised credentials, there’s always the question of “How are they used post-compromise?” In one case, they are fully on display for sale to the highest bidder.

Malicious Office Documents Jump to 37% of All Malware Downloads at the End of 2021

With the ubiquitous use of Microsoft Office today, it should come as no surprise that malicious macro-laden documents continue to reign, with PPT files delivering AgentTesla taking the ...

[Heads Up!] DHS Sounds Alarm on New Russian Destructive Disk Wiper Attack Potential

CNN just reported on a Jan 23 Intelligence Bulletin from the US Department of Homeland Security (DHS) that warned state and local governments and critical infrastructure operators about ...

Ransomware Operators Try to Recruit Insiders

Sixty-five percent of organizations report that their employees have been contacted by ransomware attackers in an attempt to recruit insider threats, according to researchers at Pulse and ...

Irish Teaching Council Fined €60,000 for Phishing-Induced Breach

Ireland’s Teaching Council has been fined €60,000 by the country’s Data Protection Commission (DPC) over a breach of nearly ten thousand teachers’ data, the Irish Examiner reports. An ...