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

Morgan Stanley Warns Against “Brushing Scam”

Morgan Stanley has outlined several common scams everyone should be on the lookout for during the holiday season. The first involves phony delivery notifications. These scams are common ...

Ingenious New Attack Technique Uses Windows Store to Install Malware

Just when you thought threat actors couldn’t find another way to launch a dropper, a new method has surfaced that takes advantage of native functionality found in Windows 10.

91% of All Baiting Attacks Use Gmail to Collect Intel on Potential Victims

This rudimentary form of phishing contains no malicious links or attachments but serves a very important purpose for cybercriminals and scammers looking to better target victims.

[On-Demand Webinar] When Cybercriminals Hide in Plain Sight: Hacking Platforms You Know and Trust

Today’s hackers are concealing their attacks in places you wouldn’t expect… utilizing tools your users know and trust to deliver their malicious payloads. From hijacked single sign-on ...

Holiday Shopping and Phishing-as-a-Service

Researchers at Egress observed a massive increase in phishing kits in the run-up to Black Friday, particularly those impersonating Amazon.

Bitcoin Scam Videos on Instagram are Part of an Elaborate Account Takeover Scam

This elaborate scam uses social engineering to trick victims into sending the hacker Bitcoin while holding Instagram accounts hostage.

Phishing Attacks Smash All Records in Q3 2021 With the Highest Monthly Number of Attacks Ever

New data shows the business of phishing is moving “up and to the right” in nearly every way measurable, indicating a serious problem as threat actors continue to see growing success.

Mobile Phishing Attacks Surge 161% in the Energy Industry

The need for increased mobile security in the Energy sector has become evident with new data highlighting why these phishing attacks are occurring and effective ways to stop them.

Data Breach Costs Increase by $1 Million When Remote Workers Are Involved

You already knew remote workers increase the risk of cyberattack. New data spells out exactly what the impact of a remote workforce is on data breaches and the cost to remediate.