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

Phishing warning: One in every one hundred emails is now a hacking attempt

And just one mistake can compromise an entire organisation. Danny Palmer at ZDNet wrote: "One in every one hundred emails sent round the globe has malicious intent, likely to deliver ...

SCAM OF THE WEEK: "The Boss Needs iTunes Gift Cards For Customers... NOW"

If you ever wondered if those iTunes gift card phishes really work, see the below email exchange.

What is the secret to keeping your network safe? Training and automation

Just in time before October's Cybersecurity Awareness Month, DomainTools released its second annual Cybersecurity Report Card in which infosec pros were surveyed about their security ...

"Voice Phishing" in Korea This Year Already Exceeds 2017 Numbers.

The Korea JoonGang Daily reported that despite warnings from financial authorities, an average of 116 people fall victim to what is called "voice phishing" scams every day in Korea.

DMARC and Its Place in Email Security

Dealing with business email compromise (BEC) requires people, process, and technology. As we've noted before, the problem is growing. Harder to detect and evolving in sophistication, ...

Weaponized IQY Files Make Excel Users an Easy Target

The Necurs botnet – most notably responsible for distributing Locky – is now pushing weaponized internet or web query (.IQY) file to evade detection and download malware.

Only 40% of Business Phishing Scams Contain Links

This latest statistic takes the spotlight off of antivirus as the protector, and puts the focus squarely in the hands of your users to stop attacks.

When Russian InfoSec White Hats Go Black

This latest story about one specific cybercriminal group shows how even the most trusted of white-hats can give in to the lure of financial profit, following Evgeniy Bogachev who retired ...

You're Invited To Participate In The Inaugural 2018 Security Awareness Training Deployment Trends and Usage Survey.

KnowBe4 is running its Inaugural 2018 Security Awareness Training Deployment Trends and Usage Survey.

Finally, KnowBe4 Was Spoofed By Bad Guys. Expected That For Years.

When you become the worldwide No.1 player in your field with tens of thousands of organizations using your platform, you get on people's radar. Both the good guys and the bad apples.