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

Spear Phishing Campaign Targets North Korean Defectors

A state-sponsored threat actor is sending spear phishing emails to North Korean defectors and also to journalists who cover matters related to North Korea, according to researchers at ...

Phishing Reported in IKEA’s Internal Email System

IKEA has been working to contain a continuing phishing campaign that’s afflicting the furniture and houseware chain’s internal email system. BleepingComputer describes it as a ...

John Scimone, SVP and Chief Security Officer at Dell Technologies, says “security is everyone's job.”

Organizations need to build a culture of security in order to defend themselves against cyberattacks, according to John Scimone, Senior Vice President and Chief Security Officer at Dell ...

FBI: Cyber Attacks Target Organizations Involved in Mergers and Acquisitions

A new notification from the FBI warns organizations of attacks at the perfect time when organizations are spending money, new people are being introduced, and operations are in flux.

Email Classified as ‘Malicious’ by Employees Has Increased by 35% in the Last Year

New data shows Phishing, Vishing, Social Media attacks, and Microsoft 365 credential attacks are all on the rise as more users are demonstrating savviness around identifying malicious ...

Phishing Attacks Impersonating Amazon Continue, Raising Concerns on the Cusp of Black Friday and the Holidays

New phishing attacks in the form of impersonated Amazon order confirmation emails cause potential victims to make phone calls and give up credit card details.

Planning on Relaxing During the Holiday? Think Again – Ransomware Attacks May Have You Working Over a Holiday Break!

New data shows a majority of organizations experience ransomware attacks during holiday breaks, disrupting operations and your time away from work!

Avoid Donating to Charity Scammers During Giving Tuesday 2021

Giving Tuesday is a great way for organizations and people to give back. However, this gives cybercriminals opportunities to take advantage of you with charity scams.

SEC Warns of Spoofed Emails Impersonating Their Employees

Scammers are impersonating the US Securities and Exchange Commission (SEC) with spoofed phone calls and other communications that attempt to steal money and personal information from ...

New Dangerous and Persistent "Metamorphic" Malware Strain Called Tardigrade

Michael Kan at PCMag reported on this new strain of Windows malware. It can constantly adapt to avoid detection and was first found targeting the biotech industry, including the ...