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

Phishing Attacks are the Most Prevalent Source of Identity-Related Breaches

Jul 14, 2022 4:27:06 PM By Stu Sjouwerman

Cybercriminals almost always need to leverage credentials as part of just about any kind of cyberattack. To no surprise, phishing and social engineering play a dominant role.

Facebook-Themed Scam Aims to Steal Your Credentials

Jul 14, 2022 4:27:03 PM By Stu Sjouwerman

A creative mix of phishing emails, solid social engineering, use of Facebook Messenger, brand and site impersonation, and a sense of urgency all add up to a believable attack.

Watchdog Uncovers 12% of Google Ads for Student Loan Relief Could be Malicious

Jul 14, 2022 12:02:34 PM By Stu Sjouwerman

You may want to be careful about clicking on a student loan forgiveness ad. The Tech Transparency Project reviewed the top Google searches with 'student loan forgiveness' and found almost ...

QuickBooks Phishing Scam is Back

Jul 14, 2022 8:39:27 AM By Stu Sjouwerman

Scammers are continuing to abuse the QuickBooks tax accounting software to send phishing scams, according to Roger Kay at INKY.

[On-Demand Webinar] Hacks That Bypass Multi-Factor Authentication and How to Make Your MFA Solution Phishing Resistant

Jul 13, 2022 1:17:58 PM By Stu Sjouwerman

The average person believes using Multi-Factor Authentication (MFA) makes them significantly less likely to be hacked. That is simply not true! Hackers can bypass 90-95% of MFA solutions ...

Phishing Attack Steals $8 Million Worth of Cryptocurrency

Jul 13, 2022 9:09:08 AM By Stu Sjouwerman

Scammers stole $8 million worth of Ethereum from users of the Uniswap cryptocurrency exchange, according to Sujith Somraaj at Decrypt. Notably, the attackers relied purely on social ...

CyberheistNews Vol 12 #28 [Eye Opener] Lessons Learned From a Big Hotel's Recent Data Breach Caused by Social Engineering

Jul 12, 2022 9:21:14 AM By Stu Sjouwerman

Callback Malware Campaigns Impersonate CrowdStrike and Other Cybersecurity Companies

Jul 11, 2022 3:26:04 PM By Stu Sjouwerman

CrowdStrike sent the following Tech Alert to their customers

All it Takes is “Free” Beer to Steal Your Personal Data

Jul 11, 2022 12:39:21 PM By Stu Sjouwerman

A recent phishing scam impersonating the Heineken beer brand demonstrates how very little effort is needed by scammers to convince victims to give up all kinds of personal information.

Multi-Medium Phishing Tactics Increase Attack Effectiveness by 300%

Jul 11, 2022 12:39:16 PM By Stu Sjouwerman

New data from IBM shows how attackers are leveraging more than just email to elevate their chances of reaching their malicious goals – and their victims are helping them do it.

Amazon Prime Day Phishing

Jul 11, 2022 8:48:06 AM By Stu Sjouwerman

Check Point Research (CPR) observed a 37% increase in Amazon-themed phishing attacks during the first week of July, ahead of Amazon Prime day this week. The emails come in a variety of ...

KnowBe4 Named a Leader in the Summer 2022 G2 Grid Report for Security Orchestration, Automation, and Response (SOAR)

Jul 11, 2022 8:00:00 AM By Stu Sjouwerman

We are excited to announce that KnowBe4 has been named a leader in the Summer 2022 G2 Grid Report for Security Orchestration, Automation, and Response (SOAR) for the PhishER platform for ...

KnowBe4 Named a Leader in the Summer 2022 G2 Grid Report for Security Awareness Training

Jul 11, 2022 8:00:00 AM By Stu Sjouwerman

We are thrilled to announce that KnowBe4 has been named a leader in the latest G2 Grid Report that compares Security Awareness Training (SAT) vendors based on user reviews, customer ...

[Scam of the Week] Amazon Prime Day or Amazon Crime Day? Don’t Fall Victim to Phishing

Jul 8, 2022 2:36:20 PM By Stu Sjouwerman

As Amazon Prime Day approaches, Checkpoint research is sending a warning that Amazon Prime Day scams will ramp up very soon.

[Eye Opener] Lessons Learned from a Big Hotel's Recent Data Breach Caused By Social Engineering

Jul 8, 2022 8:55:07 AM By Stu Sjouwerman

This week Marriott International, one of the largest hotel chains, suffered their second data breach of 2022. The attack by a group named 'Group with No Name' (GNN) took place in early ...

One Employee’s Desire for a New Job Cost His Employer $540 million

Jul 8, 2022 8:47:54 AM By Stu Sjouwerman

A “Fake Job” scam allows cybercriminals to gain entrance to the network at Sky Mavis, makers of the game Axie Infinity, and eventually take the company for half a billion dollars in ...

Your KnowBe4 Fresh Content Updates from June 2022

Jul 8, 2022 7:00:00 AM By Stu Sjouwerman

Check out the 68 new pieces of training content added in June, alongside the always fresh content update highlights and new features.

FBI Issues Warning on China for Attempting to 'Ransack' Western Companies

Jul 7, 2022 9:11:52 AM By Stu Sjouwerman

Bloomberg recently reported that FBI Director Christopher Wray issued a warning to Western companies that China wants to 'ransack' their IP. The goal of this attack would be to dominate ...

Phishing Campaign Impersonates the UAE

Jul 7, 2022 9:01:30 AM By Stu Sjouwerman

Researchers at CloudSEK have observed a financially motivated phishing campaign that’s impersonating the United Arab Emirates (UAE) Ministry of Human Resources. The large-scale campaign ...

Expect More Travel-Themed Phishing Scams as 80% of Americans Plan to Travel

Jul 7, 2022 9:01:18 AM By Stu Sjouwerman

The lure of last-minute deals to get away after staying home for the last 2 years is so strong, scammers are using it to their advantage with scams intent on stealing online credentials.

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