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

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CyberheistNews Vol 8 #24 Scam of the Week: Phishing Celebrity Deaths Kate Spade and Anthony Bourdain

Jun 11, 2018 9:58:30 AM By Stu Sjouwerman

Scam of The Week: Celebrity Deaths Kate Spade and Anthony Bourdain

Jun 9, 2018 10:10:56 AM By Stu Sjouwerman

Two celebrities committed suicide this week, and unfortunately that's going to be exploited by lowlife internet criminals in a variety of ways.

New Phishing Campaign Uses IQY Attachments to Bypass Antivirus And Installs RATs

Jun 8, 2018 2:34:04 PM By Stu Sjouwerman

A malicious spam campaign, distributed by the Necurs botnet, is using a new attachment type that is doing a good job in bypassing your antivirus and mail filters.

We Received A CEO Fraud Phishing Attack From Our Own Personal Accountants

Jun 7, 2018 7:22:41 AM By Stu Sjouwerman

This is an up-close and personal account of how my wife Rebecca and I (we hope) dodged a cybercrime bullet. You probably do not know that I am an elected official of the City of ...

Kate Spade Suicide Phishing Templates

Jun 6, 2018 7:31:17 PM By Stu Sjouwerman

This is another celebrity death which will spawn a raft of phishing and social media attacks. We recommend to inoculate your users before they make it through the filters.

CyberheistNews Vol 8 #23 [Heads-Up] Ransomware Insurance Expert: "Bad Guys Do More Damage Than They Used To."

Jun 4, 2018 9:49:43 AM By Stu Sjouwerman

Watch Out For World Cup Soccer Phishing Scams

Jun 2, 2018 3:12:14 PM By Stu Sjouwerman

The 2018 FIFA World Cup has drawn a worldwide audience. It's also attracted phishing scams using event tickets as bait. Tickets for the matches can only be purchased legitimately through ...

[Heads-up] Ransomware Insurance Expert: "Bad Guys Do More Damage Than They Used To"

Jun 2, 2018 8:28:49 AM By Stu Sjouwerman

The ransomware plague is not letting up and rapidly getting more technically sophisticated. New strains are popping up every month, using innovative methods to spread. Worse, the ransom ...

Punycode Makes SMiShing Attacks More Deceiving

Jun 1, 2018 5:47:07 PM By Stu Sjouwerman

Phishing attacks carried out via text messages that use the “Punycode” technique to make nefarious URLs look legitimate are becoming more popular, cloud security firm Zscaler says.

Satan Ransomware Spawns New And Innovative Methods to Spread

Jun 1, 2018 5:27:22 PM By Stu Sjouwerman

It’s a worrying trend that ransomware isn’t going away. Worse, it's constantly adapting to include brand new exploits/techniques and spreads in more innovative and successful ways. Today, ...

The Con of Social Engineering: Law Firms are Easy Prey

Jun 1, 2018 4:15:46 PM By Stu Sjouwerman

Excellent article at www.law.com about social engineering! A discussion of the threat that social engineering (aka the "human side of hacking") poses to law firms, and some tips and ...

Hacking Humans—a new CyberWire podcast covering social engineering launched this week

Jun 1, 2018 3:53:11 PM By Stu Sjouwerman

Each week the CyberWire’s Hacking Humans podcast looks behind the social engineering scams, phishing schemes, and criminal exploits that make headlines and take a heavy toll on ...

KnowBe4 Fresh Content Update & New Features May 2018

May 30, 2018 5:08:47 PM By Stu Sjouwerman

May was an exciting month with a variety of updates. Check out what's new! EXPLOQII ACQUISITION AND NEW VIDEO CONTENT We are excited to add a new content publisher to the KnowBe4 family. ...

Here is a Spam Message from 1864, as Old as the Victorian Internet

May 30, 2018 1:38:07 PM By Stu Sjouwerman

If you thought spam was just a twenty-first-century thing, think again. As usual, most things that seem new have pretty deep roots. Most of us can see spam's ancestry in junk mail, but it ...

Cobalt Cybercrime Group Resumes Phishing Attacks

May 29, 2018 10:58:10 AM By Stu Sjouwerman

The leader of the Cobalt hacking group was arrested in Spain two months ago, but the gang resurfaced at the end of May. Their spear phishing emails started hitting victims' in-boxes again ...

ModStore Update: 44 exploqii videos with downloadable option now live

May 29, 2018 9:45:42 AM By Stu Sjouwerman

CyberheistNews Vol 8 #22 Which Users Will Cause the Most Damage to Your Network and Are an Active Liability?

May 29, 2018 9:43:08 AM By Stu Sjouwerman

Why is Windows 10 Rapidly Gaining Ground in The Enterprise While Win7 Gets Ditched?

May 27, 2018 10:36:45 AM By Stu Sjouwerman

Duo Security is a provider of secure login/access tools, and they just released their yearly Trusted Access Report with some very interesting data. Here Is The Summary Stats gathered from ...

It's May 25th, 2018: GDPR DAY! Here Are Phishing Templates You Can Use...

May 25, 2018 10:31:14 AM By Stu Sjouwerman

Because it is "GDPR day" our templates team has been hard at work developing GDPR/Privacy policy templates. We have 6 new templates available in the system, located in Current Events. We ...

1 in 10 healthcare organizations paid off ransomware within the last year

May 25, 2018 9:50:56 AM By Stu Sjouwerman

More than one in three healthcare organizations have suffered a cyberattack within the last year, while almost one in 10 have paid a ransom or extortion fee, according to Imperva.

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