Stu Sjouwerman

Chief Executive Officer & President

Stu Sjouwerman (pronounced “shower-man”) is the founder and CEO 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.

Books

Cyberheist E-Book

Find all of Stu's books on Amazon

[On-Demand Webinar] Getting Compliance on Your Compliance Training

Sep 13, 2022 7:00:00 AM By Stu Sjouwerman

You might think 100% completion rates on any employee training sounds too good to be true. But, getting compliance on your compliance training is possible!

Report: 80% of Phishing Attacks Leverage Legitimate Web Infrastructure and Services

Sep 12, 2022 1:51:30 PM By Stu Sjouwerman

Threat actors are taking advantage of every free tool and service they can to improve their changes of successfully fooling security solutions, with compromised websites taking the lead.

Gaming-Related Phishing Trends

Sep 12, 2022 9:37:39 AM By Stu Sjouwerman

Researchers at Kaspersky have found that the vast majority of gaming-related malware lures are targeted at Minecraft players. Roblox came in at a distant second, and the researchers note ...

PwC: More Frequent Cyber Attacks Tops the List of Business Risk for Executives

Sep 9, 2022 8:46:40 AM By Stu Sjouwerman

New data from PwC provides insight into what aspects of the business are executives focused on, worried about, and seeing as future challenges as they look to manage business risk.

Singapore: Top Ten Scams in the First Half of 2022 Cost Over $227 Million, Scam Frequency Rises by 94%

Sep 9, 2022 8:46:03 AM By Stu Sjouwerman

Queries of reported cases to Singapore Police reveal a rise in scam costs by 59% as phishing cases double and job-related scams increase 7x from the first half of 2021.

[New Training] Give Your Employees the Know-How to Have the Tough Conversations with New Compliance Plus Training

Sep 8, 2022 11:51:00 AM By Stu Sjouwerman

We’re thrilled to announce a brand new microlearning, TV-like production quality series of compliance content now available in the Compliance Plus library.

New Phishing-as-a-Service Platform

Sep 8, 2022 8:46:47 AM By Stu Sjouwerman

Researchers at Resecurity have discovered a new Phishing-as-a-Service (PhaaS) platform called “EvilProxy” that’s being offered on the dark web. EvilProxy is designed to target accounts on ...

[On-Demand Webinar] Combatting Rogue URL Tricks: Quickly Identify and Investigate the Latest Phishing Attacks

Sep 7, 2022 11:41:56 AM By Stu Sjouwerman

Everyone knows you shouldn’t click phishy links. But are your end users prepared to quickly identify the trickiest tactics bad actors use before it’s too late? Probably not.

Spear Phishing Campaign Targets Financial Institutions in African Countries

Sep 7, 2022 11:00:00 AM By Stu Sjouwerman

Researchers at Check Point have discovered a spear phishing campaign dubbed “DangerousSavanna” that's targeting financial entities in at least five African countries.

CyberheistNews Vol 12 #36 [Eye Opener] So, Your MFA Is Phishable, What to Do Next?

Sep 7, 2022 9:15:00 AM By Stu Sjouwerman

1-Time Passcodes Are a Corporate Liability. Department of Homeland Security Fraud Warning. Email not displaying? | View Knowbe4 Blog CyberheistNews Vol 12 #36 | September 7th, 2022 [Eye ...

Register for KB4-CON EMEA 2022 Now!

Sep 6, 2022 11:31:18 AM By Stu Sjouwerman

Once again we are hosting a special KB4-CON Virtual Summit for all of our customers and partners in Europe, the Middle East, and Africa with content tailored to your region! Last year’s ...

REvil Springs Back to Life and Hits a Fortune 500 Company

Sep 6, 2022 11:00:00 AM By Stu Sjouwerman

The previously-thought defunct cybercriminal gang appears to not only reopened for business but has re-established themselves as a major threat by touting 400GBs of stolen data.

The Number of Phishing Attack Cases in Japan Hit an All-Time High

Sep 6, 2022 10:30:00 AM By Stu Sjouwerman

The number of reported cases of phishing to Japan’s Council of Anti-Phishing reached over 100,000 in July, just as a notice of scams impersonating Japan’s National Tax Agency is released.

Instagram Phishing: Scammers Exploit Instagram Verification Program

Sep 4, 2022 12:16:10 PM By Stu Sjouwerman

Researchers at Vade warn that an email phishing campaign is informing users that their Instagram account is eligible to receive a blue verification badge. If a user clicks the link, ...

Fraud Warning from DHS OIG

Sep 2, 2022 8:45:00 AM By Stu Sjouwerman

The Department of Homeland Security’s Office of the Inspector General (DHS OIG) has issued an alert to warn that scammers are posing as DHS employees.

Your KnowBe4 Fresh Content Updates from August 2022

Sep 2, 2022 7:00:00 AM By Stu Sjouwerman

Check out the 50 new pieces of training content added in August, alongside the always fresh content update highlights and new features.

Phishing Attacks Leveraging Legitimate SaaS Platforms Soars 1100%

Aug 31, 2022 9:30:27 AM By Stu Sjouwerman

As threat actors look for ways to evade detection by security solutions, the use of cloud applications has seen a material jump in the last 12 months, according to new data.

Phishing and Malicious Emails Are Still the Primary Initial Attack Vector

Aug 31, 2022 9:30:19 AM By Stu Sjouwerman

As cybercriminals continue to evolve their techniques, they continue to rely on phishing as the most successful tried and true method of initial attack, according to new data from Acronis.

LockBit Ransomware Group Steps Up Their Game with Triple Extortion as the Next Evolution

Aug 31, 2022 9:30:12 AM By Stu Sjouwerman

After suffering a taste of their own medicine as part of a response effort from victim organization Entrust, LockBit appears to have bounced back even stronger than before.

Lost in Translation? New Cryptomining Malware Attacks Based in Turkey Cause Suspicion

Aug 31, 2022 9:30:07 AM By Stu Sjouwerman

Researchers at Check Point warn that attackers based in Turkey are distributing cryptomining malware via free software distribution websites, including Softpedia and uptodown. The ...

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