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

Ransomware on CBS This Morning

Jan 9, 2015 10:40:02 AM By Stu Sjouwerman

January 9, 2015 - CBS This Morning News ran an item about ransomware featuring Shawn Henry, former FBI executive assistant director and president of cyber security firm CrowdStrike ...

KnowBe4 Expands 397 Percent Year Over Year

Jan 8, 2015 2:29:00 PM By Stu Sjouwerman

Hi All, I have some very good news I want to share.

Size Does Not Matter For Cybercrime

Jan 6, 2015 3:41:00 PM By Stu Sjouwerman

Most small- and medium business owners think that they are not a target for cybercrime. Well, if you think you are safe because you are just a little fish in a big pond, think again. ...

The Six Biggest Security Threats We’ll Face in 2015

Jan 6, 2015 9:57:00 AM By Stu Sjouwerman

CyberheistNews Vol 5 #1 Jan 6, 2015 Kim Zetter did her homework and extrapolated for WIRED magazine the current threats and looked at how they would unfold in the coming 12 months. She ...

Cybersecurity Top Risk Consideration In Board Room

Dec 31, 2014 2:23:30 PM By Stu Sjouwerman

The Wall Street Journal polled its readers and asked them to rate the top compliance issues of 2014. The answers were very interesting!

Schneier: Sony Hackers May Have Had Inside Help

Dec 31, 2014 1:11:22 PM By Stu Sjouwerman

Well-known IT Security guru Bruce Schneier commented on recent discoveries related to the Sony Hack. First of all, an analysis of the timestamps on some of the leaked documents shows that ...

Defense In Depth: Your Answer To Social Engineering

Dec 31, 2014 1:04:36 PM By Stu Sjouwerman

Organizations defend their networks on each of the six levels in the green graph you see. End-user Internet Security Awareness Training resides in the outer layer: ‘Policies, Procedures, ...

New ransomware called "extortionware" in 2015? Not so much...

Dec 30, 2014 4:17:00 PM By Stu Sjouwerman

TK Keanini, CTO, Lancope wrote a 2015 Predictions editorial over at SC Magazine. He said he expects more malware like CryptoLocker and CryptoWall over the next 12 months, but also ...

A new strain of "ransomware" is striking

Dec 30, 2014 3:02:49 PM By Stu Sjouwerman

Mitch Lipka of CBS Moneywatch wrote:

2015 Crystal Ball / Three Scams To Warn Your Users About

Dec 30, 2014 9:23:00 AM By Stu Sjouwerman

CyberheistNews Vol 4 #51 Dec 30, 2014 2015 Crystal Ball / Three Scams To Warn Your Users About During my 15-year stint as the editor of WServerNews, I always started the year with a ...

Three Scams To Warn Your Users About

Dec 29, 2014 9:54:00 AM By Stu Sjouwerman

It's the holidays and the bad guys are working overtime. There are three scams you want to warn your users about. Remember the Phil Esterhaus character in Hill Street Blues? To begin ...

Security Awareness Training in 2015

Dec 25, 2014 10:45:53 AM By Stu Sjouwerman

Lance Spitzner at the SANS Securing The Human program and I have a lot in common; we evangelize effective security awareness training and we both drive a Tesla. In his 22 December 2014 ...

Cybercrime group steals millions from Russian banks and targets US

Dec 25, 2014 9:26:00 AM By Stu Sjouwerman

This is actually quite interesting, hackers that are successful inside Russia, as normally these guys are shut down by the FSB in a heartbeat. It must be that they are outside of the ...

Nine Data Breaches That Cost Someone Their Job

Dec 25, 2014 8:44:43 AM By Stu Sjouwerman

Following last year’s big announcement of not just Target’s data breach but executive job loss, CSO lays out 9 data breaches resulting in job loss. They compare Target alongside other ...

Sony Pictures Cyber Attack TIMELINE

Dec 24, 2014 12:07:39 PM By Stu Sjouwerman

This Sony Pictures Cyber Attack TIMELINE by the www.databreachtoday.com site is quite interesting.

Announcing InfoSec World 2015

Dec 23, 2014 5:42:00 PM By Stu Sjouwerman

MIS Training Institute (MISTI) and their esteemed Advisory Board are excited to present the InfoSec World 2015 Conference & Expo. KnowBe4's CyberheistNews is a Media Sponsor for the ...

Phishing Attack on German Steel Factory System Caused Massive Damage

Dec 23, 2014 3:06:00 PM By Stu Sjouwerman

Hackers breached security of a German steel mill's network and caused considerable damage by manipulating the controls of a blast furnace. The attackers gained access to the network ...

CyberheistNews Vol 4 #49 Dec 23, 2014

Dec 23, 2014 9:18:00 AM By Stu Sjouwerman

Lessons Learned From The Sony Pictures Hack Bruce Schneier reminded me of an old but very relevant concept in IT Security. There are two types of attacks: opportunistic and targeted. And ...

Scam of The Week: LinkedIn Greeting Cards Carrying Malware

Dec 22, 2014 4:37:00 PM By Stu Sjouwerman

System admins hold the keys to the kingdom. The NSA is actively hunting for system admin credentials. A popular way to get you to click on something that installs zero-day malware on your ...

Malware Used To Wipe Sony's Drives Was Quick And Dirty

Dec 22, 2014 9:44:20 AM By Stu Sjouwerman

It's still not clear (and it may never be discovered) how the Democratic People's Republic of (North) Korea (DPRK) hackers came in, perhaps they used all available threat vectors since ...

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