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

How Many Phishing Sites? Over 2 Million in 2020 (so far)

Google has flagged 2.02 million phishing sites since the beginning of the year, averaging forty-six thousand sites per week, according to researchers at Atlas VPN. The researchers note ...

2021 Prediction: Expect Ransomware Attacks Will Increase in Frequency and Variety

A new forward-looking report from security vendor FireEye Mandiant predicts the greatest single cyber threat today is only going to become a greater menace next year.

Email Sandboxes Are Detected and Rendered Useless in New Office 365 Phishing Attack

A new threat tactic is being used to determine if sandbox environments are being used to gain more information about a potential phishing attack, allowing the bad guys to avoid detection.

Ransomware Downtime Costs for SMBs Are 50 Times More than the Ransom Itself!

No one has less cash on hand to spend on dealing with a cyberattack than the small business. New data shows ransomware is a challenge for SMBs and they aren’t prepared for the costs.

Famous U.K. Soccer Club Becomes the Next Victim of a Cyber Attack

The famous UK soccer club Manchester United recently became the next victim of a cyber attack. The club stated that the personal data from fans have not been stolen.

You're Fired (Not Really, Just Clicked on a Phishing Email)

The operators of the BazarLoader malware are using phishing emails that inform people they’ve been terminated from their jobs, according to Linn Freedman, a partner at Robinson & Cole ...

OPSEC, OPSEC, OPSEC...

The BBC reported: "A Dutch journalist managed to gatecrash a confidential video conference of EU defense ministers. Daniel Verlaan of RTL Nieuws joined the meeting after the Dutch defence ...

[ModStore Release] New 2021 Versions of 3 Flagship Courses Now Live!

Our Courseware team has been hard at work, and we're proud to announce the release of the 2021 Versions of 3 Flagship Courses!

Remote Workers Continue to Put Organizations Critically at Risk of Cyberattack

The Insecurity of the remote worker, their devices, personal networks, and bad cybersecurity habits create a massive threat surface for cybercriminals to easily take advantage of.

One-Third of Employees Say Their Company Has No Cybersecurity Measures in Place While Working from Home

At a time when organizations should be implementing additional security measure to ensure the logical perimeter of their network is protected, new research shows companies aren’t prepared.