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

Guarding Against AI-Enabled Social Engineering: Lessons from a Data Scientist's Experiment

The Verge came out with an article that got my attention. As artificial intelligence continues to advance at an unprecedented pace, the potential for its misuse in the realm of ...

That Email Isn’t from the New Jersey Attorney General

Earlier this month, state employees in the US state of New Jersey began receiving emails that falsely represented themselves as originating with the state’s attorney general.

[Arm and a Leg] Cyber Insurers Are Worried About The Long-tail Cost of Attacks

[BUDGET AMMO] James Rundle at The Wall Street Journal today published a very interesting article about the long-term costs of cyber attacks and the fact that cyber insurers are getting ...

London NatWest Bank Warns Customers of Alarming Impersonation Scams

National Westminster Bank, the London-based bank familiarly known as NatWest, has warned its customers to be on the alert for emails pretending to be from NatWest, but which in fact are ...

CyberheistNews Vol 13 #16 [Finger on the Pulse]: How Phishers Leverage Recent AI Buzz

CyberheistNews Vol 13 #16 | April 18th, 2023 [Finger on the Pulse]: How Phishers Leverage Recent AI Buzz Curiosity leads people to suspend their better judgment as a new campaign of ...

Indian Rail Passenger Ticketing Platform Warns of Online Fraud

The Indian Railway Catering and Tourism Corporation (IRCTC), described as “a popular platform used by a significant number of Indians for booking train tickets,” has cautioned users about ...

[Head Start] Effective Methods How To Teach Social Engineering To An AI

Remember The Sims? Well Stanford created a small virtual world with 25 ChatGPT-powered "people". The simulation ran for 2 days and showed that AI-powered bots can interact in a very ...

Affinity Phishing Attacks Use Social Engineering Tactics to Prey on Victims

Affinity phishing scams are ones in which criminals cultivate trust in their prospective victims by trading on common background, either real or feigned. Thus a fraudster might claim a ...

Large Language Models Will Change How ChatGPT and Other AI Tools Revolutionize Email Scams

The use of Large Language Models (LLMs) is the fine tuning AI engines like ChatGPT need to focus the scam email output to only effective content that results in a wave of new email scams.

‘Support’ Tops the List of Combosquatted Domains Used in Phishing Attacks

A method used in domain impersonation attacks, combosquatting aids the threat actor by using a modified domain name to further increase the credibility of an attack.