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

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.

Cyber Attacks and Data Breaches Cited as the Number One Business Risk for Organizations

Dec 8, 2023 7:00:00 AM By Stu Sjouwerman

Even when looking at the various kinds of risks to business, cyber attacks still remain the biggest problem. But new data shows there may be a lesson to be learned to minimize losses.

Don't Be Fooled By This Sneaky Disney+ Phishing Scam

Dec 6, 2023 2:23:33 PM By Stu Sjouwerman

A callback phishing campaign is impersonating Disney+ with phony invoices, according to researchers at Abnormal Security. The phishing emails targeted individuals at 22 organizations.

New York Unit of Worlds Largest Bank Becomes Ransomware Victim

Dec 6, 2023 2:23:26 PM By Stu Sjouwerman

The ransomware attack on ICBC Financial Services caused disruption of trading of U.S. Treasuries and marked a new level of breach that could have massive repercussions.

The Alarming Threat of Ransomware: Insights from the Secureworks State of the Threat Report 2023

Dec 6, 2023 2:23:19 PM By Stu Sjouwerman

In the ever-evolving landscape of cybersecurity, the battle against ransomware has taken a concerning turn. According to the latest findings from Secureworks annual State of the Threat ...

Financial Institutions are the Most Affected by Phishing Attacks and Scams

Dec 5, 2023 11:38:56 AM By Stu Sjouwerman

New data shows how the overwhelming majority of phishing attacks on financial institutions dwarf every other industry sector by as much as a factor of 30-to-1.

PDFs: Friend or Phishing Foe? Don't Get Caught by the Latest Scam Tactic

Dec 5, 2023 11:38:52 AM By Stu Sjouwerman

Researchers at McAfee warn that attackers are increasingly utilizing PDF attachments in email phishing campaigns.

CyberheistNews Vol 13 #49 Top Four Security Tips for Cyber Safety on National Computer Security Day

Dec 5, 2023 9:00:00 AM By Stu Sjouwerman

How The Disinformation Machine Works, And How $400 Can Stop It

Dec 5, 2023 7:01:49 AM By Stu Sjouwerman

Specifically when wars break out, disinformation kicks into high gear. In the wake of the October 7 Hamas attack, the internet has been swamped with a deluge of disinformation. This ...

Phishing Kits Undergo an Evolution in Feature Set, Demand, and Branding

Dec 4, 2023 10:33:44 AM By Stu Sjouwerman

Now being commonly referred to as “Scama” – short for Scamming Method – these kits are being sold promoting highly advanced feature sets, turning the novice scammer into a pro.

Guarding Against the Rise of QR Code Phishing Attacks: How to Protect Yourself and Your Organization

Dec 4, 2023 10:33:41 AM By Stu Sjouwerman

In the ever-evolving landscape of cyber threats, scammers and hackers are relentless in exploiting every avenue of communication. From emails to texts, calls to QR codes, malicious actors ...

Combatting Rogue URL Tricks: Quickly Identify and Investigate the Latest Phishing Attacks

Dec 4, 2023 8:00:00 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.

Vishing Gang Takes Victims for “Tens of Millions” Using Little More than Social Engineering

Dec 1, 2023 12:26:52 PM By Stu Sjouwerman

Czech and Ukrainian police have arrested six individuals responsible for a call center-based vishing scam designed to trick victims into thinking they were already victims of fraud.

The Israel-Hamas Conflict is the Latest Example of Phishing Attacks Taking Advantage of Current Events

Nov 30, 2023 11:12:12 AM By Stu Sjouwerman

Using something as simple as an attachment with an Israel/Hamas-related filename seems to be all it takes for new social engineering attacks disguised as donation confirmations.

Criminals Are Cautious About Adopting Malicious Generative AI Tools

Nov 30, 2023 11:12:08 AM By Stu Sjouwerman

Researchers at Sophos have found that the criminal market for malicious generative AI tools is still disorganized and contentious.

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Stu Sjouwerman

Books

Recent Posts

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

Deepfakes: The New Face of Fraud

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

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

Maximizing Your Purchasing Power: A Source For Validated KnowBe4 Reviews

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

Cyber Attacks and Data Breaches Cited as the Number One Business Risk for Organizations

Don't Be Fooled By This Sneaky Disney+ Phishing Scam

New York Unit of Worlds Largest Bank Becomes Ransomware Victim

The Alarming Threat of Ransomware: Insights from the Secureworks State of the Threat Report 2023

Financial Institutions are the Most Affected by Phishing Attacks and Scams

PDFs: Friend or Phishing Foe? Don't Get Caught by the Latest Scam Tactic

CyberheistNews Vol 13 #49 Top Four Security Tips for Cyber Safety on National Computer Security Day

How The Disinformation Machine Works, And How $400 Can Stop It

Phishing Kits Undergo an Evolution in Feature Set, Demand, and Branding

Guarding Against the Rise of QR Code Phishing Attacks: How to Protect Yourself and Your Organization

Combatting Rogue URL Tricks: Quickly Identify and Investigate the Latest Phishing Attacks

Vishing Gang Takes Victims for “Tens of Millions” Using Little More than Social Engineering

The Israel-Hamas Conflict is the Latest Example of Phishing Attacks Taking Advantage of Current Events

Criminals Are Cautious About Adopting Malicious Generative AI Tools

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