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

More Untrustworthy Ransomware is Bad News for SMBs

The latest from UK insurer Beazley‘s Breach Response Services division shows an increase in ransomware from attackers with little ability to decrypt ransomed data.

[VIDEO] Brand New KnowBe4 "Behind The Scenes"

Here's some brand new footage about KnowBe4 and how things look behind the scenes ! October 2018, Our Series A Venture Capital investor Elephant Partners asked us if it was OK to shoot ...

"Inception Attackers" Mix Old Exploit, New Backdoor, and Spear Phishing

SecurityWeek reported about a Palo Alto Networks warning: "A malicious group known as the “Inception” attackers has been using a year-old Office exploit and a new backdoor in recent ...

Ransomware And RDP: A Dangerous Combination

A new variant of ransomware, CommonRansom, is asking for RDP access to the victim’s computer in order to decrypt files. CommonRansom is the latest attempt to extend the ransomware attack ...

Tweets from Elon Musk Still Aren't What They Seem

We've seen this before, and it's worth noting again. A tweet from a blue-checked Elon Musk is all it takes to set a Bitcoin giveaway frenzy into motion. The only problem is that it’s just ...

Having a Cybersecurity Culture Matters (and Pays)

According to ISACA and the CMMI Institute, organizations continue to invest heavily in security technology while neglecting security training to create the appropriate corporate culture.

Security is a Whole-of-Organization Responsibility

We've blogged about other recent studies of security. They're in substantial agreement. Here's one from Gemalto, and it reports that more than 4.5 billion digital records, each with an ...

Catphishing or Emotional Terrorism or Both: You Decide

A 65-year-old woman from North Carolina, Roxanne Reed, is in jail for allegedly plotting to kill her mother for the insurance money. Roxanne Reed had swallowed a catphishing scam, one in ...

CSO: Users Pose the Greatest Security Risk

The latest data from CSO’s 2018 U.S. State of Cybercrime report highlights the risk users create, and how little organizations are doing to address it.

SEO Poisoning + Midterm Elections = Cybercriminals Paradise

Compromised websites focused on tomorrow’s midterm elections serve as the hunting ground for cybercriminals looking to take advantage of unsuspecting visitors.