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

Think Your Cyber Insurance is Going to Cover that $6 Million in Cyber Fraud? Think Again.

The latest tale of an organization falling victim to a business email compromise attack on their credit card processor highlights how very specific the scenario needs to be to see a ...

1 in 4 Business Email Compromise Attacks Use Lookalike Domains to Trick Victims

The latest Data on BEC scams shows how the bad guys are using a mix of gmail accounts, increases in stolen wire transfers, and a shift to payroll diversions to trick you out of your money.

Phishing Attacks Continue to Impersonate Trusted Brands to Deceive Potential Victims

The use of impersonation in phishing attacks helps to establish credibility and a sense of ease. New data shows exactly how the bad guys are using this tactic to their advantage.

Vendor Email Compromise is Officially A Big (Seven-Figure) Problem

While the Solarwinds “sunburst” attack brought to light the compromising of a vendor, VEC has been around for some time and now seems to be going mainstream.

Phishing Scammers Send a Fake “Private Shared Document” as the Initial Attack Vector for Stealing LinkedIn Credentials

A new social engineering scam demonstrates how cybercriminals are both evolving their tactics while still using tried and true methods that just work to attain their goals.

Someone Hacked The Four Top Russian Cybercrime Forums In One Month

Intrepid investigative cyber security reporter Brian Krebs has some interesting news. He said: "Over the past few weeks, three of the longest running and most venerated Russian-language ...

KnowBe4 Fresh Content Updates from February: Including New Season 3 of 'The Inside Man' Now Available

Here are important fresh content updates and new features to share with you that happened in the month of February.

Stanford Research: 88% Of Data Breaches Are Caused By Human Error

A recent 2020 report we just discovered confirms what we have been saying for many years now. About 9 out 10 data breaches are caused by your users. We are pleased that the somewhat older ...

Most Phishing Emails Are After Credentials

57% of phishing emails in 2020 were designed for stealing credentials, according to Cofense’s most recent Annual State of Phishing Report. Meanwhile, just 12% of phishing attacks last ...

POTRAZ Warns of Phishing Scams

The Postal and Telecommunications Regulatory Authority of Zimbabwe (POTRAZ) has issued a warning regarding an increase in email and SMS phishing attacks, the Chronicle reports. Dr. Gift ...