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

KnowBe4 is proud to announce the introduction of a new feature, Reporting APIs

Jan 17, 2018 7:31:09 PM By Stu Sjouwerman

KnowBe4 is proud to announce the introduction of a new feature, Reporting APIs. Reporting APIs enable you to customize and obtain reports by integrating with other business systems that ...

KnowBe4 Makes Third Place In Nationwide SMB Top Five Best Place To Work in Technology

Jan 17, 2018 7:16:30 PM By Stu Sjouwerman

Great Place to Work is a San Francisco-based global leader on high-trust, high-performance workplace cultures. Through their certification programs, Great Place to Work recognizes ...

Healthcare Ransomware Attacks – Don’t Be Part of the Statistics

Jan 17, 2018 2:58:43 PM By Stu Sjouwerman

Rebecca Wynn at securitycurrent.com wrote a great article on how not to become a ransomware statistic in health care: "In 2017, six of the top ten HIPAA breaches reported to the U.S. ...

Google’s Confusing Gmail Security Alert Looks Exactly Like a Phishing Attempt

Jan 17, 2018 10:26:52 AM By Stu Sjouwerman

Note: I got this too and had a similar reaction last week. Security researchers say the legitimate email is training people to have bad email hygiene. Richard De Vere, a security ...

Hospital Pays $55K Ransomware Demand DESPITE Having Backups

Jan 16, 2018 1:29:10 PM By Stu Sjouwerman

An Indiana hospital paid a ransom of $55,000 to get rid of ransomware that had infected its systems and was hindering operations last week. The infection took root last week, on Thursday, ...

Spend One Minute And Look At These Phishing Graphs

Jan 16, 2018 10:30:00 AM By Stu Sjouwerman

In the first quarter of 2018, after 7 years of helping our customers to enable their employees to make smarter security decisions and having reached the milestone of 15,000 customers, we ...

KillDisk Fake Ransomware Hits Financial Firms in Latin America

Jan 16, 2018 7:13:23 AM By Stu Sjouwerman

A new version of the KillDisk disk-wiping malware has hit companies in the financial sector in Latin America, Trend Micro reported yesterday. Just like previous versions, KillDisk ...

CyberheistNews Vol 8 #3 [Heads-up] Unusual Ransomware Strain Encrypts Cloud Email Real-Time VIDEO

Jan 15, 2018 10:04:20 AM By Stu Sjouwerman

Be like Bill Gates and Warren Buffett: If you’re not spending 5 hours per week learning, you’re being irresponsible

Jan 14, 2018 4:54:25 PM By Stu Sjouwerman

I just found a fabulous post on Quartz. “In my whole life, I have known no wise people (over a broad subject matter area) who didn’t read all the time — none. Zero.” — Charlie Munger, ...

[Heads-up] Unusual Ransomware Strain Encrypts Cloud Email Real-time

Jan 13, 2018 9:59:14 AM By Stu Sjouwerman

OK, here is something unusual and really scary. KnowBe4's Chief Hacking Officer Kevin Mitnick called me with some chilling news. A white hat hacker friend of his developed a working ...

How To Create A Security Culture in 2018

Jan 12, 2018 4:50:00 PM By Stu Sjouwerman

Ever heard: "If it was easy, everyone would do it" ? Creating a better security culture in your organization has a few challenges. Let's have a look at them, see how you can overcome ...

63% of organizations experienced an attempted ransomware attack in 2017

Jan 10, 2018 4:01:31 PM By Stu Sjouwerman

Interesting research by Enterprise Strategy Group: 63% of organizations experienced an attempted ransomware attack in 2017, with 22% reporting these incidents occurred on a weekly basis. ...

[On-Demand Webinar] Phishing Attack Landscape and Benchmarking

Jan 10, 2018 3:54:31 PM By Stu Sjouwerman

The most persistent security challenge you face today is bad guys social engineering your users. Phishing campaigns continue to be hacker’s No.1 preferred attack vector to get your ...

SNAFU Some AV Tools Cause BSODs And Boot Failures After Meltdown Patches

Jan 10, 2018 7:19:52 AM By Stu Sjouwerman

Microsoft's patch to protect Windows computers from the Meltdown / Spectre "hardware bug" revealed the rootkit-like nature of many antivirus tools. Some AV products are incompatible with ...

KnowBe4 Explosive Year-Over-Year Sales Increase of 255% for Q4 2017

Jan 9, 2018 1:52:34 PM By Stu Sjouwerman

We are excited to report a blow-out Q4, this is the 19th consecutive quarter increase! The continued accelerated growth we’ve seen this quarter is due in part to our exceptional focus on ...

CyberheistNews Vol 8 #2 Scam of the Week: Fake Meltdown and Spectre Patch Phishing Emails

Jan 9, 2018 10:01:44 AM By Stu Sjouwerman

KnowBe4 Fresh Content Update & New Features Summary

Jan 7, 2018 6:27:19 PM By Stu Sjouwerman

First, I wanted to send you a note of our deep gratitude for your trust in us. We have worked really hard to create a powerful, yet super easy platform that we hope you love. How can we ...

Scam Of The Week: Fake Meltdown And Spectre Patch Phishing Emails

Jan 7, 2018 8:34:39 AM By Stu Sjouwerman

We sent out some warnings and advisories last week about Spectre and Meltdown, but we want to remind everyone again about some steps you can take to protect yourself. Remember that the ...

10 Things You Shouldn't Include in Your Security Awareness Training Program

Jan 7, 2018 6:23:32 AM By Stu Sjouwerman

If you want to succeed with your organization's security awareness program, here are some of the top "faux-pas" you should be sure to avoid. Here are some of the errors we have seen over ...

How To Explain Meltdown And Spectre To Your C-Level and employees

Jan 5, 2018 7:06:46 AM By Stu Sjouwerman

OK, 2018 has just started and it has totally borked all networks in the whole world. That's a fine mess we're in to start off the year. :-) Meltdown and Spectre are CPU hardware design ...

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