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

“Mr. Anon” Infostealer Attacks Start with a Fake Hotel Booking Query Email

Dec 20, 2023 11:52:39 AM By Stu Sjouwerman

This new attack is pretty simple to spot on the front, but should it be successful in launching its’ malicious code, it’s going to take its victims for everything of value they have on ...

New Remote “Job” Scam Tells Victims They'll Get Paid For Liking YouTube Videos

Dec 19, 2023 11:23:07 AM By Stu Sjouwerman

Researchers at Bitdefender warn that scammers are tricking victims with fake remote job opportunities. In this case, the scammers tell victims that they’ll get paid for liking YouTube ...

Holiday Scams Include Thousands of Impersonation Phishing Domains per Brand

Dec 19, 2023 11:23:04 AM By Stu Sjouwerman

Midstride in this year’s holiday shopping, it’s important to realize just how many websites exist that impersonate legitimate online retailers. More importantly, your users need to know ...

CyberheistNews Vol 13 #51 Phishing Is Still the No. 1 Attack Vector, With Huge 144% Malicious URL Spike

Dec 19, 2023 9:00:00 AM By Stu Sjouwerman

Unique Malware Used in Cyber Attacks Increases by 70% in Just One Quarter

Dec 18, 2023 11:56:48 AM By Stu Sjouwerman

As more cybercriminal gangs continue to enter the game, the massive increase in unique types of malware means it will become increasingly difficult to identify and stop attacks.

[IRS Alert] Three Tips To Protect Against Tax Season Refund Scams

Dec 15, 2023 11:25:00 AM By Stu Sjouwerman

Urging taxpayers and tax professionals to be vigilant, the Internal Revenue Service (IRS) provides some simple guidance on how to spot new scams aimed at being able to file fake tax ...

Brand New BazarCall Phishing Campaign Abuses Google Forms

Dec 14, 2023 1:14:18 PM By Stu Sjouwerman

A new BazarCall phishing campaign is using Google Forms to send phony invoices, according to researchers at Abnormal Security.

As the Holiday Season Ramps Up, So Do Scams Impersonating the U.S. Postal Service

Dec 14, 2023 1:14:04 PM By Stu Sjouwerman

Taking traditional “delayed package” scams up a notch, new phishing and smishing attack campaigns are leveraging freemium DNS services to avoid detection by security solutions.

Phishing Is Still the No. 1 Attack Vector, With Huge 144% Malicious URL Spike

Dec 13, 2023 12:26:16 PM By Stu Sjouwerman

Analysis of nearly a year’s worth of emails brings insight into exactly what kinds of malicious content are being used, who’s being impersonated, and who’s being targeted.

Undercover Threat: North Korean Operatives Infiltrate U.S. Companies Through Job Platforms

Dec 13, 2023 12:26:08 PM By Stu Sjouwerman

Researchers at Nisos warn that North Korean threat actors are impersonating skilled job seekers in order to obtain remote employment at US companies.

Russia Weaponizes Israel-Hamas Conflict in Targeted Phishing Attack

Dec 12, 2023 12:18:27 PM By Stu Sjouwerman

Researchers at IBM X-Force are tracking a phishing campaign that’s using themes related to the Israel-Hamas war to deliver Headlace, a backdoor exclusively used by the suspected Russian ...

Who's Calling? Spam, Scams and Wasted Time

Dec 12, 2023 12:18:20 PM By Stu Sjouwerman

First ever insight into those annoying spam calls provides enlightening detail into how many calls are there, where are they coming from, and how much time is wasted dealing with them.

Unwrapping the Threat: AI-Powered Phishing Attacks Take Center Stage in 2023 Holidays

Dec 12, 2023 12:18:08 PM By Stu Sjouwerman

As the holiday season approaches, so does the annual surge in online shopping and holiday package tracking. Unfortunately, this joyous time has also become a prime hunting ground for ...

CyberheistNews Vol 13 #50 [Heads Up] Don't Be Fooled by This Sneaky Disney+ Phishing Scam

Dec 12, 2023 9:00:00 AM By Stu Sjouwerman

Russian Hackers Indicted for Phishing Attacks Against U.S. and Allies

Dec 11, 2023 10:34:40 AM By Stu Sjouwerman

The US Justice Department has indicted two individuals for launching spear phishing attacks against the US, the UK, Ukraine and various NATO member countries on behalf of the Russian ...

Deepfakes: The New Face of Fraud

Dec 11, 2023 10:34:32 AM By Stu Sjouwerman

Security analysts at identity vendor Sumsub are seeing a massive rise in the use of deepfake fraud in their Identity Fraud Report 2023. And one country may be to blame.

WSJ: "A Hidden Risk in the Municipal Bond Market: Hackers"

Dec 11, 2023 8:00:00 AM By Stu Sjouwerman

December 7, 2023 - The Wall Street Journal has an interesting perspective on K-12 Public schools suffering ransomware attacks. The number doubles between 2021 and 2022 to almost 2,000 a ...

2024 IT Spending Surge: Surprising Insights from Piper Sandler's CIO Survey

Dec 11, 2023 6:56:14 AM By Stu Sjouwerman

Industry analysts Piper Sandler do a yearly 'Industry Note' where they survey CIOs about their next year budget expectations. For 2024 there is a noticeable improvement regarding ...

Maximizing Your Purchasing Power: A Source For Validated KnowBe4 Reviews

Dec 9, 2023 7:25:08 AM By Stu Sjouwerman

One of the key strategies to maximize your purchasing power is to research products and compare total cost of ownership. Take the time to do research and gather data about the platforms ...

Nearly Every CIO Identifies at Least One Cyber Threat as a Risk to their Business

Dec 8, 2023 3:40:05 PM By Stu Sjouwerman

When 97% of CIOs all see things the same way, it’s probably a sign to take the risk of cyber threats seriously – a problem new data shows is only going to get worse in the next five years.

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