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

Scam Of The Week: Sextortion With A RATty Twist

Sextortion is a form of blackmail where the extortionist claims to have photos or video of the victim watching adult entertainment on their computer. The criminal threatens to send the ...

[Heads-up] U.S. Government: "Your Weak Cyber Security Violates Federal Law"

Reuters just made me aware of a U.S. Securities and Exchange Commission report about a recent SEC investigation of nine companies that had been victims of CEO fraud had sufficient ...

[Heads-up] Here Is Some New Powerful Ammo To Get InfoSec Budget Approval!

The team at Forbes Magazine's Tech Council asked me to write up the lessons we have learned over the last 8 years of helping you keep the bad guys out of your network. It took me a while, ...

212 Million Exposed Contacts Would Be a Scammer’s Dream

A recent discovery of exposed data on a web-facing server owned by data aggregator and analytics provider Apollo demonstrates how data breaches empower scammers.

CEOs and Boards are Unprepared for Cyber Risk

Deloitte’s CEO and Board Risk Management Survey shows organizations are unprepared for the future of cyberattack at the highest levels.

75% of Users Don’t Know Cyber Security Best Practices

New data from MediaPRO’s third annual State of Privacy and Security Awareness Report shows users are less prepared this year to address the risk of cyberthreat.

It Only Takes One Phish: 37K Records and a Month of Access

The attack on California-based Gold Coast Health Plan went undetected, allowing attackers access to healthcare data serving as fuel for fraud.

Three Out of Ten People Would Fall for Impersonation Scams

Phony police calls in the US have been telling people they need to pay a fine for missing jury duty. In the UK the scams take a different form: the bogus police are asking for the ...

UK publishers warn of global phishing scams targeting manuscripts

A succession of global phishing scams targeting publishers and agents has prompted responses from several global publishers, reports the Bookseller.