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Security Awareness Training Blog

Keeping You Informed. Keeping You Aware.
Stay on top of the latest in security including social engineering, ransomware and phishing attacks.

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Stu Sjouwerman

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

Find all of Stu's books on Amazon

Recent Posts

FBI: US Defense Industry Organizations Targeted with USB-Based Ransomware Attacks

Jan 21, 2022 8:24:40 AM By Stu Sjouwerman
Using mailed out “BadUSB” drives as the initial attack vector, cybercriminals are attempting to infiltrate sensitive networks and infect them with BlackMatter or REvil ransomware strains.
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New U.K. Vishing Scam Offers Significant Phone Plan Discounts in Exchange for your Phone Provider's One-Time Security Code

Jan 21, 2022 8:24:37 AM By Stu Sjouwerman
Scammers targeting customers of mobile carrier O2 are enticing victim engagement by offering discounts on their mobile plan as much as 40%.
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DHL is Now the Most Spoofed Brand in Phishing

Jan 20, 2022 9:26:04 AM By Stu Sjouwerman
International shipping company DHL was the most impersonated brand in phishing attacks during the fourth quarter of 2022, researchers at Check Point have found.
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Ransomware Attacks are Growing in Number, But Not in Sophistication

Jan 20, 2022 9:26:01 AM By Stu Sjouwerman
As organizations work to protect against the relentless series of ransomware attacks that have plagued businesses large and small, the methods of attack seem to be leveling out.
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Google Docs Comment Feature is the Key to a New Wave of Phishing Campaigns

Jan 20, 2022 9:25:58 AM By Stu Sjouwerman
Hackers take advantage of legitimate comment functionality as a way to look legitimate, reach the Inbox, and avoid detection, despite using malicious links for phishing attacks.
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Half of All Organizations Hit by Ransomware Experience Productivity Loss

Jan 20, 2022 9:25:55 AM By Stu Sjouwerman
According to new data, ransomware is expected to be a larger and more likely threat in the next year, making the impacts felt today very relevant as the impetus for improved cybersecurity.
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KnowBe4's Top-Clicked Phishing Email Results for Q4 2021 Compare the U.S. and EMEA [INFOGRAPHIC]

Jan 19, 2022 3:33:56 PM By Stu Sjouwerman
KnowBe4's latest quarterly report on top-clicked phishing email subjects is here. We analyze the top categories, general subjects (in both the United States and Europe, Middle East and ...
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A Cyberespionage Group Uses Social Engineering

Jan 19, 2022 8:33:29 AM By Stu Sjouwerman
A sophisticated China-aligned threat actor is using social engineering to carry out cyberespionage and financially motivated attacks, according to researchers at Trend Micro.
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CyberheistNews Vol 12 #03 FBI: Beware of a New Google Voice Authentication Scam – Even if You Don’t Use Google Voice!

Jan 18, 2022 3:04:43 PM By Stu Sjouwerman
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North Korean Cryptocurrency Theft Relies on Social Engineering

Jan 18, 2022 11:59:26 AM By Stu Sjouwerman
A North Korean threat actor being called “BlueNoroff,” a subunit of Pyongyang’s Lazarus Group, has been targeting cryptocurrency startups with financially motivated attacks, researchers ...
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KnowBe4 Named a 2021 Gartner Peer Insights™ Customers’ Choice for Security Awareness Computer-Based Training

Jan 17, 2022 8:00:00 AM By Stu Sjouwerman
KnowBe4 is excited to announce that we have been recognized as an overall Customers’ Choice in the December 2021 Gartner Peer Insights ‘Voice of the Customer’: Security Awareness ...
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[On-Demand Webinar] Nuclear Ransomware 3.0: We Thought It Was Bad and Then It Got Even Worse

Jan 14, 2022 8:27:37 AM By Stu Sjouwerman
We thought it was bad enough when traditional ransomware started to steal data in its second generation of evolution, now dubbed "double extortion". The third stage of ransomware is ...
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Fifty FIFA eSports Accounts Were Hacked Via Social Engineering

Jan 13, 2022 3:08:08 PM By Stu Sjouwerman
Video game maker Electronic Arts (EA) has stated that around fifty high-profile accounts for the soccer game FIFA 22 were hacked after attackers manipulated the company’s customer service ...
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FBI: Beware of a New Google Voice Authentication Scam – Even if You Don’t Use Google Voice!

Jan 12, 2022 12:11:13 PM By Stu Sjouwerman
A new advisory warns of a scam that can affect literally anyone designed as a precursor to additional vishing scams and/or to perform Gmail account takeovers.
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Payment Fraud Moves to the Real World with Fake QR Codes on Parking Meters

Jan 12, 2022 12:11:06 PM By Stu Sjouwerman
Scammers are using the professional-looking stickers to point those parking to an alternate pay site to collect credit card details in the perfect situation where victims would be none ...
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U.S. Government Warns of More Cyberattacks Targeting Critical Infrastructure

Jan 12, 2022 10:31:17 AM By Stu Sjouwerman
A new joint cybersecurity advisory from CISA, the FBI, and the NSA cautions organizations against Russian-based attacks and provides mitigations to be implemented.
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It’s a Fact: Cyberattacks Continue Because Your Users Forget

Jan 12, 2022 9:37:22 AM By Stu Sjouwerman
The weakest part of your cybersecurity can be identified by looking at how cyberattacks take place, and how well your defenses stand up. But did you know the answer comes from the year ...
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“Information Disorder”: Giving a Name to One of the Most Impactful Parts of Phishing Scams

Jan 12, 2022 9:37:18 AM By Stu Sjouwerman
At the core of every phishing scam is a combination of a bunch of lies and (sometimes) a few truths. A new focus on better defining the misuse of information provides insight into why ...
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Over 200 Ransomware Strains Detected in Last Part of 2021

Jan 12, 2022 9:37:15 AM By Stu Sjouwerman
With the news focused on just a few key ransomware strains, it’s understandable to think you’ll never be a target. But newly-released data shows who’s doing the attacking and who’s being ...
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KnowBe4 Named a Leader in the Winter 2022 G2 Grid Report for Security Awareness Training

Jan 12, 2022 8:00:00 AM By Stu Sjouwerman
The latest G2 Grid Report compares Security Awareness Training (SAT) vendors based on user reviews, customer satisfaction, popularity and market presence.
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