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

Insights Into Credential Phishing

Cybercriminals are quick to put hacked accounts to use, according to Agari by Help Systems. The researchers found that 91% of compromised accounts are accessed by attackers within one ...

FINRA Warns U.S. Brokerage Firms of New Phishing Campaign Threatening Penalties for Non-Compliance

In the latest phishing campaign targeting FINRA member firms, attackers impersonate requests from the regulatory authority citing the potential to “attract penalties” if request ...

Ransomware Tops IBMs List of Most Observed Attack Types with Sodinokibi Maintaining the Lead

In a new report from IBM Security, we get the opportunity to see exactly what kinds of attacks are succeeding, where are they happening, how they’re getting in, and what are the results.

78% of CISOs Say Attacks Have Increased as a Result of More Employees Working from Home

According to new data from VMware Carbon Black, the sophistication and impact of modern cyberattacks is causing CISOs to rethink how to secure the expanding attack surface.

Chinese Hacker Group Debuts After 3 Years of Testing with a Previously Unseen Backdoor Exploit

Dubbed ‘SharpPanda’, this Chinese APT group uses malicious Word docs, .RTF templates, and the RoyalRoad malware to install a powerful backdoor DLL giving them all kinds of access.

Phishing Trends Show Adult Themes Have Skyrocketed 974%

Phishing lures with adult themes have spiked over the past year, according to researchers at GreatHorn. The researchers explain that these emails are effective at getting people to click, ...

KnowBe4 Fresh Content Updates from May: Including New Mobile-First Training Modules

Here are important fresh content updates and new features to share with you that happened in the month of May.

Ransomware Attacks Run Rampant as Fujifilm Becomes the Next Victim

We just covered a recent story today that there was a ransomware attack on Steamship Authority. And like clockwork, another company becomes the next victim.

[REUTERS BREAKING NEWS] U.S. to give ransomware hacks similar priority as terrorism

June 3, 2021 - 3:30PM EDT -- The U.S. Department of Justice is elevating investigations of ransomware attacks to a similar priority as terrorism in the wake of the Colonial Pipeline hack ...