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

[Live Demo] Ridiculously Easy Security Awareness Training and Phishing

Old-school awareness training does not hack it anymore. Your email filters have an average 7-10% failure rate; you need a strong human firewall as your last line of defense.

Customers of Cryptocurrency FTX are Target of  Phishing Emails

Customers of the bankrupt cryptocurrency exchange FTX are already receiving phishing emails following a breach of personal data held by several crypto companies, CoinDesk reports.

Open Redirect Flaws: The Newest Phishing Trick

No surprise: phishing attacks are on the rise, and an old technique is now--again--getting increasingly popular: open redirect flaws. These flaws allow attackers to redirect victims to ...

Asking Claude AI For a Little Encryption Help... :-(

A friend sent me this:

Quishing: QR Codes as Phishbait

Researchers at Trustwave are tracking an increase in the use of QR codes to spread phishing links.

Case Study: LoanLogics Combined Compliance & Security Awareness Training to Improve Security Culture

In the drive to build a strong security culture, security awareness and compliance training should work hand in hand.

Top 10 Trends in Business Email Compromise for 2023

Researchers at Trustwave have published a report outlining trends in business email compromise (BEC) attacks, finding that these attacks spiked in February of 2023.

Use KnowBe4’s New Callback Phishing Feature to Boost Your Organization's Security Awareness

What's the Deal with Callback Phishing?

Your KnowBe4 Fresh Content Updates from August 2023

Check out the 21 new pieces of training content added in August, alongside the always fresh content update highlights, events and new features.