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

Deepfakes Continue to be a Concern as the Technology Improves and Becomes More Convincing

In the wake of the FBI’s warning about more deepfake-based cyber attacks coming in the next year, organizations should remain vigilant against this compelling form of social engineering.

Trend Micro: Most Organizations in the World Will Likely Be Compromised in the Next 12 Months

A new report from security vendor Trend Micro quantifies the current level of risk most organizations are facing, highlighting how ill-prepared we really are, how many have already been ...

Cyber Attacks Grow 125% as Ransomware Tops the List Plaguing Enterprise Organizations

With no slowdown of cyberattacks in sight, global incident volumes continue to trend upward, according to new data from Accenture’s Cyber Investigations, Forensics and Response team.

The Average Ransom Demand of $5.3M in 2021 is Up 518% From Last Year

Cybercriminals appear to be more aggressive with their idealistic ransom demands as some gangs continue to evolve, using new “quadruple extortion” tactics to ensure payment.

Copyright Scammers Now Making Phone Calls

Copyright infringement scammers have begun using phone calls to contact potential victims, according to Paul Ducklin at Naked Security.

Attackers Use Morse Code to Encode Phishing Attachments

A phishing campaign is using morse code to encode malicious attachments in order to slip past security filters, according to researchers at Microsoft. The phishing emails contain HTML ...

KnowBe4’s Automated Security Awareness Program Builder Now Available in Nine Languages

Now that the KnowBe4 Security Awareness Training and Simulated Phishing Platform is available in nine localized languages, starting your organization's security awareness training program ...

The Anatomy of Smishing Attacks and How to Avoid Them

Cybercriminals and nation-state actors continue to launch smishing attacks to steal credentials and distribute malware, according to Michael Marriott, Senior Strategy and Research Analyst ...

Military Personnel Vulnerable to Fraud

US military personnel and veterans have lost more than $822 million to scams since 2017, according to researchers at AtlasVPN. The researchers analyzed data from the US Federal Trade ...

Words of Advice for Organizations on Cybersecurity Best Practices

We recently attended Black Hat USA 2021 this year and Erich Kron, Security Awareness Advocate for KnowBe4, sat down with Cybersecurity Ventures to give words of advice for all ...