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

KnowBe4 Named a Leader in the 2018 Gartner Magic Quadrant for Security Awareness Training

KnowBe4 has been positioned by Gartner, Inc. in the Leaders quadrant of the 2018 Gartner Magic Quadrant for Security Awareness Computer-Based Training for the second year in a row. ...

Watch Out Banks: New PDF Attack Avoids Antivirus Detection

The latest attack from the Cobalt Gang targeting banking institutions used specific tactics to ensure AV doesn’t detect the malicious PDF at the heart of the attack.

New Study: Ransomware Attacks Surge 500% on Apple Operating Systems

This staggering growth in attacks on the MacOS signals that Macs are no longer safe.

Phishing Attacks Rose by 30 Million in Q3 2018

Kaspersky Lab blocked 137 million phishing attempts in the third quarter of 2018, a 28 percent increase compared to Q2 2018. A report by the anti-virus company reveals that phishing ...

Data Breaches Expose 3.6 Billion Records in 2018

With nearly 3,700 publicly disclosed data compromise events in the first 3 quarters of 2018, according to security information provider, Risk Based Security, breaches remain a risk.

Fun Thanksgiving Landing Page

Just like we did for Halloween, Natalie has created a new Thanksgiving landing page, to coincide with any phishing tests set up to run around the Thanksgiving holiday.

[LAST CHANCE] The Pesky Password Problem: Battle of the Red and Blue Team

What really makes a “strong” password? And why are your end-users tortured with them in the first place? How do hackers crack your passwords with ease? And what can/should you do about ...

New Hybrid Ransomware Strain Evades Detection by All but One Antivirus Engine

IBM at their SecurityIntelligence blog reported something troubling.

New Ransomware Gang Pays Affiliates Up To 70% Of The Loot

A growing Ransomware-as-a-Service model uses affiliate attackers with proven track records to spread the malware, offering a percentage of the ransom.

[Heads-up] FIRED: Two C-level Execs Who Fall Victim To A Massive 21 Million Dollar CEO Fraud

Two top-level executives of movie chain Pathé—the Managing Director and the CFO—were fired recently, after it became clear that they fell for a massive CEO Fraud attack that could have ...