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

Healthcare Sector Experiencing Increases in Ransomware, Ransoms and Downtime

An analysis of ransomware attacks on healthcare organizations from 2016 through October of 2023 shows the healthcare sector is likely to continue to suffer as a viable ransomware target.

Spear Phishing Becomes Most Common Attack Technique in Q3 2023

Spear phishing was the most common attack technique in the third quarter of 2023, according to researchers at ReliaQuest.

Cybersecurity Expert: AI Lends Phishing Plausibility for Bad Actors

Cybersecurity experts expect to see threat actors increasingly make use of AI tools to craft convincing, highly targeted and sophisticated social engineering attacks, according to Eric ...

Small Businesses are Experiencing More Cyber Attacks

As large organizations realize the likelihood of cyber attacks and improve their cyber readiness, small businesses are seeing increases not experienced by their larger counterparts.

Investigate User-Reported Emails with Ease Through the Powerful Combination of CrowdStrike Falcon Sandbox and KnowBe4 PhishER Plus

The never-ending deluge of phishing emails, malware and ransomware threats can leave incident response and security operation teams (SOC) looking for faster ways to analyze user-reported ...

WSJ: "SEC Sues SolarWinds Over 2020 Hack Attributed to Russians"

October 30, 2023 the Wall street Journal broke news that the United States Security and Exchange Commission sued Solarwinds. Here are the first few paragraphs and there is a link to the ...

September Sees a 32% Increase in the Number of Ransomware Attacks in Just One Month

Continued analysis of ransomware attacks shows an upward trend in the number of attacks, with September resulting in the highest number of assaults so far this year.

Cybercriminal Group Octo Tempest and Its Menacing Phishbait

Microsoft is tracking a cybercriminal group called “Octo Tempest” that uses threats of violence as part of its social engineering and data theft extortion campaigns.

Exposed: Scam Artists Mimicking PepsiCo in Phishing Schemes

Researchers at INKY warn that a phishing campaign is attempting to distribute malware by impersonating PepsiCo.