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

UK Warns Critical Industries to Boost Cyber Security or Face Hefty Fines

The UK government has warned that Britain's most critical industries must boost their cybersecurity or face potentially hefty fines under the EU's Networks and Information Systems ...

[PHISHING ALERT] "Hey Did You See That Fake AI Porn Movie Of Yourself?"

Heads-up. I am sorry to have to bring up a very distasteful topic, but in the very near future your users will get phishing emails with something close to the ultimate click-bait, luring ...

Look out for More SMiShing This Year

Our friends at Social-Engineer wrote a great post that we are cross-posting here, because we see the same problem happening more and more! "With the new year come new social engineering ...

Scam Of The Week: The Most Sophisticated Netflix Phishing Yet

This Netflix phishing campaign goes after your login, credit card, mugshot and ID! Paul Ducklin at Sophos wrote: "Think of the big security stories of recent months. Security holes like ...

KnowBe4 2017 Top Clicked Phishing Test Analysis

Click on the Picture to download the full infographic in PDF format Looking at the whole of 2017, there were some interesting shifts on what phishing emails were clicked from quarter to ...

Forget Viruses or Ransomware—Is Your Biggest Cyberthreat Greedy Cryptocurrency Miners?

This week, cybersecurity firm Check Point published its regular Global Threat Index. Malware that hijacks workstations to mine cryptocoins has apparently become the most popular infection ...

Business Email Compromise Phishing Attacks Will Exceed $9 Billion This Year

Trend Micro reported that Business Email Compromise (BEC) is projected to skyrocket as attackers use more and more sophisticated social engineering tactics to trick their targets. The ...

Why Cybercrime Ditches Bitcoin Ransomware Payments And Where They Are Going Next

The popularity of bitcoin is creating problems for ransomware criminals wanting to get paid in the skyrocketing cryptocurrency. "We'll see a progressive shift in 2018 towards criminal use ...

Three-Quarters of Businesses Saw Phishing Attacks in 2017

Tara Seals at InfoSecurity Magazine had a good summary of Wombat Security Technologies' annual State of the Phish research report. "The war against phishing is still on, with 76% of ...

KnowBe4 is proud to announce the introduction of a new feature, Reporting APIs

KnowBe4 is proud to announce the introduction of a new feature, Reporting APIs. Reporting APIs enable you to customize and obtain reports by integrating with other business systems that ...