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

Dutch Government Can Respond to Ransomware Attacks with Armed Forces if Needed

Oct 11, 2021 8:00:00 AM By Stu Sjouwerman

According to a recent article from The Record, Dutch government officials stated that intelligence or military services can be used to counter cyber-attacks. This includes ransomware, ...

What’s Next for the 3.8 Billion Entries in the Clubhouse-Facebook Database? Plenty of Social Engineering Attacks

Oct 8, 2021 9:09:56 AM By Stu Sjouwerman

What do you get when you add a totally free 1.3 Billion set of phone numbers and data from millions of Facebook profiles? A massive dox database of users now up for sale for $100,000.

When It Comes to Password Hygiene, Users Say One Thing, But Do Another

Oct 8, 2021 9:09:51 AM By Stu Sjouwerman

With credentials being at the forefront of most cyberattacks, the need for strong, unique passwords is at an all-time high. But new data shows users know what to do, but don’t do it.

U.K. Authorized Push Payment Scams Jump 71% in First Half of 2021, Taking in £355 Million

Oct 8, 2021 9:09:44 AM By Stu Sjouwerman

Surpassing credit card fraud in the U.K., scamming victims into sending money to a fraudulent bank account has taken the lead spot in fraud scams that could cost U.K. residents more than ...

KnowBe4 Celebrates Winning a Tech Cares Award From TrustRadius

Oct 7, 2021 9:54:20 AM By Stu Sjouwerman

For the second consecutive year, we received a Tech Cares Award from TrustRadius! This second annual award celebrates companies that have gone above and beyond to provide strong Corporate ...

Framing the Social Engineering Risk in Business Terms

Oct 7, 2021 8:54:26 AM By Stu Sjouwerman

C-suite employees need to understand the risk posed by social engineering attacks, according to CSO. Terry Thompson, adjunct instructor in cybersecurity at Johns Hopkins University, told ...

Your KnowBe4 Fresh Content Updates from September

Oct 6, 2021 8:00:00 AM By Stu Sjouwerman

With 52 new pieces of training content added this month, check out the always fresh content update highlights and new features from the month of September.

[On-Demand Webinar] 5 Things You Need To Know About Ransomware Before It's Too Late

Oct 6, 2021 8:00:00 AM By Stu Sjouwerman

Cybercriminals have become thoughtful about ransomware attacks; taking time to maximize your organization’s potential damage and their payoff. And few organizations are prepared to ...

Telecom Company Responsible for Routing Billions of Text Messages Annually Acknowledges Multi-Year Breach

Oct 5, 2021 5:21:24 PM By Stu Sjouwerman

Mentioned in passing as part of a Securities and Exchange Commission (SEC) filing, Syniverse admits to hackers having access for five years, potentially impacting millions of mobile phone ...

CyberheistNews Vol 11 #39 [New Criminal Tactic]: Shortened LinkedIn URLs Are Now Used as Phish Hooks

Oct 5, 2021 9:30:00 AM By Stu Sjouwerman

Phishing: Low- Middle- and High-Level

Oct 5, 2021 9:05:27 AM By Stu Sjouwerman

Phishing attacks have varying levels of technical sophistication, according to Mark Nicholls from Redscan. In an article published by ITProPortal, Nicholls explains that the lowest level ...

New James Bond Movie is Cybercriminals Shiniest Phishbait

Oct 4, 2021 8:41:31 AM By Stu Sjouwerman

Cybercriminals are using the new James Bond movie, No Time to Die, as phishbait, the National reports. Researchers at Kaspersky warn that malicious ads and phishing sites are claiming, ...

Hackers rob thousands of Coinbase customers using phishing attacks and an MFA flaw

Oct 3, 2021 10:02:42 AM By Stu Sjouwerman

Bleepingcomputer was first to report: "Crypto exchange Coinbase disclosed that a threat actor stole cryptocurrency from 6,000 customers after using a vulnerability to bypass the company's ...

Phishing Attacks Maintain “New Normal” Elevated Levels into the Middle of 2021

Oct 1, 2021 1:08:46 PM By Stu Sjouwerman

New data from the Anti-Phishing Working Group (AWPG) shows the Q2 of 2021 showed similar phishing activity to that of Q1, indicating no slowdown in attacks.

90% of All Cyber Attacks on Organizations Involve Social Engineering

Oct 1, 2021 1:08:42 PM By Stu Sjouwerman

It’s official: threat actors and cybercriminal gangs alike are enlightened and have locked in on the use of social engineering as the primary means to trick recipients into becoming ...

Phishing Campaign Impersonates Zix Messages

Oct 1, 2021 1:06:13 PM By Stu Sjouwerman

Researchers at Armorblox have spotted a credential phishing campaign that’s impersonating encrypted communications from Zix. The emails contain a link to download an HTML attachment.

Europol: Italian Mafia Tied to Cybercriminals Responsible for €10 Million in Cyberattacks

Sep 30, 2021 8:19:31 AM By Stu Sjouwerman

The recent dismantling of a cybercriminal gang has uncovered ties to the Italian Mafia, demonstrating that even traditional organized crime is moving to cyber.

5th Circuit Court Finds Cyber Insurer Must Pay for $1 Million Social Engineering Attack

Sep 30, 2021 8:19:24 AM By Stu Sjouwerman

A simple social engineered Business Email Compromise attack resulted in fraud that the cyber insurer contended was not covered under the policy.

Phishing Kits and Phishing-as-a-Service Responsible for Over 300,000 URLs Used in Phishing Attacks

Sep 30, 2021 8:19:15 AM By Stu Sjouwerman

Lowering the barrier to market even more, this new Phishing as a Service (PhaaS) spotted by Microsoft puts quality phishing templates and sites into the hands of any would-be cyber ...

Someone's Impersonating the California DMV in Texts

Sep 29, 2021 9:00:09 AM By Stu Sjouwerman

The California DMV has warned of an ongoing smishing campaign seeking customers’ personal and financial information, Pasadena Now reports.

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