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

Stealthy 'Netwalker' Ransomware Using Windows Explorer And 'Art of Deception' To Infect Enterprise Networks

Researchers at Quick Heal Security Labs have discovered a new strain of the “Mailto” ransomware nicknamed “Netwalker" that uses the art of deception to evade detection. The new strain ...

Did you know that KnowBe4 provides Managed Phishing Services?

You have determined the need for a mature, effective security awareness training program to make sure your employees do not fall for phishing emails or social engineering attacks. As part ...

UK Telegraph: "Huge ransomware attack laid bare French lingerie firm"... And Bankrupted It

Leave it to the wordsmiths of the British Press to come up with a catchy title like this... However, the topic is dead serious.

Anti-Virus, Identity Protection Phishbait

A phishing campaign is using fake NortonLifelock documents to trick victims into installing a remote access tool, according to researchers at Palo Alto Networks’ Unit 42. The documents ...

New Sophisticated Credential-Stealing Malware, Forelord, Attacks the Middle East

This latest APT highlights the levels of sophistication attackers will go to just to establish persistence, infect the endpoint, and steal credentials from the victim organization.

Courts Limit Payout on Insurance Claim to Just One Section of the Liability Policy

The latest ruling shows how the courts are becoming well-versed in the ways of cyberattacks, and are holding both insurers and policyholders to the letter of the contract.

Social Security Administration Warns of Phone Scams On March 5th "Slam The Scam Day"

The Social Security Administration in Association with the Federal Trade Commission's (FTC) National Consumer Protection Week, want to remind everyone that scammers are now targeting ...

[On-Demand] Never Assume Breach: Build a Data-Driven Defense Strategy to Secure Your Organization's Most Valuable Assets

Even the world’s most successful organizations have significant weaknesses in their IT security defenses, which today’s determined hackers can exploit at will. There’s even a term for it: ...

Cut-and-Paste Phishbait

Naked Security describes a phishing campaign that’s convincingly spoofing emails from the online payment company Stripe. The email informs the recipient that an unknown device has logged ...

Data Breach After Effects: Consequences and Learning Lessons

If you think your organization is safe from a data breach, think again. Data breaches could be deadly for any organization big or small.