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

Phishing Kits Continue to be Popular With Cybercrime Due to New User-Friendly and Sophisticated Features

Phishing kits continue to grow more user-friendly and sophisticated, according to a new report from ZeroFOX. The report explains that these kits have become a fixed feature in the ...

[MOST WANTED] Criminal Hacker Of The Week: Maksim Viktorovich Yakubets

The FBI said: The United States Department of State’s Transnational Organized Crime Rewards Program is offering a reward of up to $5 million for information leading to the arrest and/or ...

Introduction To KnowBe4's Services

KnowBe4 helps organizations to educate and train their employees against social engineering attacks, and carry out other required compliance training. KnowBe4 offers over 1,000 different ...

The Recent Massive Twitter Social Engineering Hack Was Tried And True Pretexting

The verge reported: "Twitter provided an update about the unprecedented July 15th attack that allowed hackers to tweet from some of the most high-profile accounts on the service, in a ...

[HEADS UP] North Korean Cybercriminals Use Fake Recruitment Emails in Phishing Scam

North Korean hackers have been following that bit of social engineering wisdom to a T. According to researching from McAfee, a months long phishing campaign against aerospace and defense ...

An Old Dog with Some New Tricks

The Emotet botnet is now including stolen attachments in its phishing emails to increase the appearance of authenticity, BleepingComputer reports. The botnet is well-known for targeting ...

[HEADS UP] Coronavirus Scams in the U.K. You Should be Wary Of

According to a recent report from BBC News, the bad guys are using the coronavirus pandemic to use social engineering to trick people out of their cash.

1 in 3 Employees Rarely or Never Think About Cybersecurity

Eye-opening data around the impact of human error demonstrates how simple user mistakes can compromise your organization’s cybersecurity posture.

Sawfish Spearphishing Attacks Continue, Prompting Password Resets on GitHub and DeepSource

A new wave of attacks on GitHub users via app developer DeepSource has raised concerns over access to user credentials and development code.

New CONTI Ransomware Family Touts Faster Encryption, Better Obfuscation, More Control

Just when you thought ransomware couldn’t sport something new, the latest family discovered by VMware’s Threat Analysis Unit shows significant advances in capabilities and execution.