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

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[On-Demand Webinar] Understanding the Threat of NFT and Cryptocurrency Cyber Attacks and How to Defend Against Them

Jun 6, 2022 11:39:00 AM By Stu Sjouwerman

A growing number of organizations worldwide are utilizing cryptocurrency for a host of investment, operational, and transactional purposes. Seemingly overnight, technologies like ...

Your KnowBe4 Fresh Content Updates from May 2022

Jun 3, 2022 8:09:30 AM By Stu Sjouwerman

Check out the 26 new pieces of training content added in April, alongside the always fresh content update highlights and new features.

Smishing and Home Delivery

Jun 2, 2022 9:10:57 AM By Stu Sjouwerman

A smishing campaign is impersonating the UK-based delivery company Evri with text messages informing recipients that their package couldn’t be delivered, according to Paul Ducklin at ...

SideWinder Targets Pakistani Entities With Phishing Attacks

Jun 2, 2022 9:09:56 AM By Stu Sjouwerman

The India-aligned APT SideWinder is using a variety of social engineering techniques to target Pakistani government and military entities, according to researchers at Group-IB. The threat ...

U.K.’s National Health Service Becomes the Latest Victim of a Credential Harvesting Phishing Operation

Jun 1, 2022 6:09:40 PM By Stu Sjouwerman

Part of a six-month attack, email accounts on the NHS’ Microsoft 365 instance were compromised, resulting in over 1,100 targeted email attacks used to obtain more credentials.

Phishing Attacks Rise 54% as the Initial Attack Vector Across All Threat Incidents

Jun 1, 2022 6:09:19 PM By Stu Sjouwerman

As cybercriminal groups hone their craft, one analysis shows them shying away from zero-day exploits, use of valid accounts, and third-party vulnerabilities to gain initial access during ...

The Business (and Success) of Ransomware Explained as a Simple Funnel

Jun 1, 2022 6:08:53 PM By Stu Sjouwerman

The rise of Ransomware-as-a-Service has given rise to a number of more successful groups who have their “business” down to a simple exercise of playing the numbers.

CyberheistNews Vol 12 #22 [Heads Up] The New Verizon 2022 Data Breach Investigation Report Shows Sharp Rise in Ransomware

Jun 1, 2022 8:59:33 AM By Stu Sjouwerman

Phishing Campaign Targets QuickBooks Users

Jun 1, 2022 8:23:44 AM By Stu Sjouwerman

Accounting software provider Intuit has warned of a phishing scam targeting its customers, BleepingComputer reports. The phishing campaign affected users of Intuit’s QuickBooks product, ...

The $44 Million Smishing Problem and How to Not Be a Victim

May 27, 2022 8:04:11 AM By Stu Sjouwerman

Consumer Affairs reported on how big of a problem SMS phishing scams have become, and how it's about to get a lot worse. According to a recent FBI report, more than 320,000 Americans were ...

Collaring the (Alleged) Leader of a BEC Gang

May 26, 2022 8:44:12 AM By Stu Sjouwerman

A joint operation by INTERPOL and the cybercrime unit of the Nigeria Police Force have concluded a yearlong investigation into the SilverTerrier business email compromise gang by ...

Verizon: Ransomware Involved in 25% of Data Breaches as Credentials and Phishing are Seen as “Key Paths” for Attack Success

May 25, 2022 12:30:10 PM By Stu Sjouwerman

With the much-anticipated annual Verizon Data Breach Investigations Report finally released, we get a view of ransomware from the data breach perspective that points to a common weakness ...

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Stu Sjouwerman

Books

Recent Posts

[On-Demand Webinar] Understanding the Threat of NFT and Cryptocurrency Cyber Attacks and How to Defend Against Them

Your KnowBe4 Fresh Content Updates from May 2022

Smishing and Home Delivery

SideWinder Targets Pakistani Entities With Phishing Attacks

U.K.’s National Health Service Becomes the Latest Victim of a Credential Harvesting Phishing Operation

Phishing Attacks Rise 54% as the Initial Attack Vector Across All Threat Incidents

The Business (and Success) of Ransomware Explained as a Simple Funnel

CyberheistNews Vol 12 #22 [Heads Up] The New Verizon 2022 Data Breach Investigation Report Shows Sharp Rise in Ransomware

Phishing Campaign Targets QuickBooks Users

The $44 Million Smishing Problem and How to Not Be a Victim

Collaring the (Alleged) Leader of a BEC Gang

Verizon: Ransomware Involved in 25% of Data Breaches as Credentials and Phishing are Seen as “Key Paths” for Attack Success

That’s Not Actually Elon Musk

New Scam Uses Fraud Support Social Engineering to Take Victims for Thousands of Dollars

Phishing Scammers Benefit from Shady SEO Practices to Rank Better Than Legitimate Domains

New IRS Phishing Scam Uses Fake Notices to Steal Microsoft 365 Credentials

FBI Director Warns of “Unprecedented” Cyberespionage Attacks Originating in China

New Phishing Attack Uses Malicious Chatbot For Real Time Social Engineering

CyberheistNews Vol 12 #21 [EYE OPENER] Your Cyber Insurance Went up a Whopping 92% Last Year

Phishing Attacks Increase by 54% as Initial Attack Vector for Access and Extortion Attacks

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