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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Scam Of The Week: Enter To Win Tickets To Star Wars

Oct 22, 2015 4:14:43 PM By Stu Sjouwerman

It's "Scam Of The Week" time to warn your users against phishing attacks that try to trick them into winning movie tickets for the new Star Wars movie. For the next 2 months this is going ...

Beautiful Social Engineering Attack By Gorgeous IBM Rep

Oct 22, 2015 11:54:49 AM By Stu Sjouwerman

Credit card numbers are small potatoes. Big-time computer hackers are after proprietary information: source code, pharmaceutical research, legal documents, chemical formulas, blueprints, ...

Ransomware Spreads Using Remote Desktop and Terminal Services Attacks

Oct 22, 2015 11:05:07 AM By Stu Sjouwerman

Larry Abrams at tech blog Bleeping Computer was the first one to report on this new wrinkle. The ransomware is called LowLevel04 and encrypts data using RSA-2048 encryption, the ransom is ...

CyberheistNews Vol #5 #45

Oct 20, 2015 9:36:46 AM By Stu Sjouwerman

CyberheistNews Vol #5 #45 Oct 20, 2015 Apple's OS X Security Honeymoon Is Over Unfortunately, bad guys are business people too. Their time is money, and they follow market leaders. By ...

Stop End-Users From Doing Stupid Stuff

Oct 17, 2015 11:01:16 AM By Stu Sjouwerman

Roger A. Grimes is an InfoWorld contributing editor. Roger holds more than 40 computer certifications and has authored eight books on computer security. He has been fighting malware and ...

[VIDEO] Hacking the Chip & Pin card technology is easy

Oct 16, 2015 10:07:54 AM By Stu Sjouwerman

The banks are promoting that the so called new "Chip & Pin" cards are much safer. They are also called the EMV chip system and touted to be secure. However, this technology is 15 ...

Apple's OS X Security Honeymoon Is Over

Oct 15, 2015 11:32:20 AM By Stu Sjouwerman

Unfortunately, bad guys are business people too. Their time is money, and they follow market leaders. By now, Apple's market share of desktop computers is close to 17 percent. OS X, ...

Healthcare pros do not get enough security awareness training

Oct 13, 2015 5:09:33 PM By Stu Sjouwerman

Healthcare pros surprisingly get very little security awareness training. Only 38 percent of these employees get security training at least twice a year -- 49 percent get training once a ...

CyberheistNews Vol 5 #43 Near-flawless Social Engineering Attack Spoiled By Single Error

Oct 13, 2015 8:33:45 AM By Stu Sjouwerman

*|CyberHeistNews|* CyberheistNews Vol #5 #43 Oct 13, 2015 Near-flawless Social Engineering Attack Spoiled By Single Error Steve Ragan at CSO has a great story about a CEO Fraud social ...

WSJ Gives Powerful Ammo For More InfoSec Budget

Oct 12, 2015 10:57:30 AM By Stu Sjouwerman

A front page article in the Wall Street Journal describes the escalating arms race for a possible cyberwar. This article is a great way to get C-level execs a crash course about ...

Teach your execs well: Stop phishing in the C-suite

Oct 9, 2015 10:25:20 AM By Stu Sjouwerman

J. Peter Bruzzese is an InfoWorld columnist and five-time-awarded Microsoft MVP (current technical expertise Office 365, previous four years Exchange). He is a technical speaker, author ...

[INFOGRAPHIC] Social Engineering

Oct 9, 2015 6:30:03 AM By Stu Sjouwerman

“You could spend a fortune purchasing technology and services, and your network infrastructure could still remain vulnerable to old-fashioned manipulation.” — Kevin Mitnick. Bad guys ...

Postal employees fall to internal phishing sting

Oct 8, 2015 5:15:00 PM By Stu Sjouwerman

Aaron Boyd wrote: "Determined not to fall victim to another network breach, the U.S. Postal Service is phishing its own employees, testing their ability to recognize a scam before it's ...

[INFOGRAPHIC] Men Twice As Likely To Fall For Phishing Attacks

Oct 8, 2015 4:59:09 PM By Stu Sjouwerman

In the never ending battle of the sexes, it looks as though women are winning the phishing fight according to new research from KnowBe4. In an analysis done by KnowBe4 of 201,755 phishing ...

Near-flawless Social Engineering attack spoiled by single flaw

Oct 8, 2015 11:22:21 AM By Stu Sjouwerman

Steve Ragan at CSO has a great story about a CEO Fraud social engineering attack that was caught just in time because the employees were given effective security awareness training. This ...

Cisco Takes Down $60M Ransomware Operation

Oct 7, 2015 1:32:33 PM By Stu Sjouwerman

Good news for a change. Cisco just posted that they disabled a cybercrime operation that used the Angler exploit kit to distribute ransomware. The takedown shutttered a global ransomware ...

CyberheistNews Vol #5 #42 Scam Of The Week: Facebook Dislike Button

Oct 6, 2015 9:31:01 AM By Stu Sjouwerman

*|CyberHeistNews|* CyberheistNews Vol #5 #42 Oct 6, 2015 Scam Of The Week: Facebook Dislike Button At a Sept 15, 2015 Town Hall Q&A session at Facebook headquarters, Zuckerberg ...

Men Are Twice As Likely To Fall For Phishing Attacks

Oct 4, 2015 8:08:46 AM By Stu Sjouwerman

In an analysis done by KnowBe4 of 201,755 phishing emails sent over the past 30 days, it was found men appear to be more prone to clicking on a phishing email than women. In further ...

Scam Of The Week: Facebook Dislike Button

Oct 3, 2015 11:12:50 AM By Stu Sjouwerman

At a Sept 15, 2015 Town Hall Q&A session at Facebook headquarters, Zuckerberg mentioned that for years users had been asking about a 'dislike button', and that Facebook was finally ...

New KnowBe4 Feature CEO Fraud Prevention Phishing Test

Oct 2, 2015 11:17:45 AM By Stu Sjouwerman

We just released a new feature that allows you to test your employees for "CEO Fraud" spear phishing attacks. When you create a phishing email template, you can now specify a Sender Name ...

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