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

Why Ransomware Continues to Be an Immensely Profitable Business for Bad Actors

Ransomware, arguably the most efficient malware used by cybercrooks in recent years, continues to wreak havoc on a global scale, affecting everyone and everything, from regular Internet ...

Spearphishing Boils Down to Basic Social Engineering

While spearphishing attacks may employ various tactics and tools, they all rely on the same underlying human weaknesses to achieve their goals, according to Asaf Cidon from Barracuda ...

Social Engineers Earn a First

A study by nonprofit research company Jisc and the UK’s Higher Education Policy Institute (HEPI) found that 100 percent of spear phishing tests against universities were able to gain ...

Florida Spearphishing: Meddle Globally, Phish Locally

Russian intelligence services sent spearphishing emails to more than 120 email accounts used by Florida election officials in November 2016, according to Special Counsel Robert Mueller’s ...

The Cost of Paying in a Ransomware Attack Nearly Doubles While Downtime Also Increases

The latest data from Coveware shows increases across the board in ransoms, downtime, and average cost of an attack, mostly due to the increased use of the Ryuk ransomware variant.

U.K. Government: "80% Of Organizations Experience Phishing Attacks"

Despite maintaining an improved security posture over last year, 2019 brings additional attacks with a higher price tag, causing the U.K. government to urge organizations to do more.

Ohio Becomes the Third U.S. State to Adopt the NAIC’s Insurance Data Security Model Law

Ohio joins South Carolina and Michigan to create cybersecurity legislation modeled after the National Association of Insurance Commissioners’ (NAIC) Insurance Data Security Model Law.

Phishing Continues to be the Source of Health Data Breaches Totaling Over 1M Breached Records

The beginning of 2019 has proven that data breaches in the health industry aren’t going anywhere. And from the intel on the breaches, phishing is playing a predominant role.

[InfoGraphic] 56 Must Know Data Breach Statistics for 2019

Varonis spent a lot of time compiling a whole bunch of data breach stats that are very good ammo for budget requests. They also created an infographic with a quick executive summary. Did ...

New Articles And Templates From The KnowBe4 Tech Content Team

Hi everyone, we wanted to send a quick note about the major items the Tech Content Team has added to our knowledge base and KMSAT product in the last month.