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

August Fresh Content Updates from KnowBe4: Including New Disinformation Training Content for Your Users

Here are a few important feature and fresh content updates to share with you for the month of August.

CEO Fraud Wire Transfer Losses Soar 48% in Q2 2020

Business email compromise attacks—aka CEO Fraud— have taken shape this year, and according to Agari wire transfer losses have significantly increased by 48% in Q2 2020. The average losses ...

CyberheistNews Vol 10 #36 [FUN] What (Really) Happens When You Type in a URL in an Address Bar in a Browser?

CyberheistNews Vol 10 #36 [FUN] What (Really) Happens When You Type in a URL in an Address Bar in a Browser? I saw this post on Twitter with a fun and educational infographic that shows ...

The Heart has Its Reasons, but Those Shouldn't Become an Enterprise Risk

The FBI has warned that victims of romance scams lost $475 million in 2019, BleepingComputer reports. In Idaho alone, nearly one hundred of these victims lost more than $1 million each. ...

QBot is Back With New Phishing Tricks

Researchers at Check Point warn that the QBot banking Trojan now has the ability to hijack email threads on infected devices and send malicious emails to the victim’s contacts. The ...

The U.K. is Under Massive Cyberattack and They Are Nowhere Near Prepared

New insights into the cybersecurity readiness of U.K. organizations shows cyberattacks are plentiful and costly, and there aren’t enough cybersecurity pros to help.

Funding for startup U.K. Cybersecurity Firms has Increased by 940% Since Lockdown

Yes, 940%. The demand for cybersecurity has risen so much since COVID, that the U.K. is seeing a new cybersecurity business registered every week and massive job vacancies.

Australian Financial Services Company is Sued for Repeatedly Being Hacked… and Doing Zero About It

The Australian Securities and Investments Commission (ASIC) is suing RI Advice Group for being hacked multiple times over a year’s time that includes 155 hours of undetected hacker ...

One-Fifth of Organizations Have Experienced a Security Breach Due to Their Remote Workforce

Having a remote workforce has been keeping organizations running, but new data puts a spotlight on the realities of what preparations were taken and whether organizations are truly secure.

New Lazarus Spearphishing Attack on Crypto Organizations Uses a LinkedIn Job Posting as its Front

What better way to gain complete control over a crypto organization’s network that to target their sysadmin with a Job Posting and then spear phish them?