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

I am a malware coder and botnet operator

May 11, 2012 3:20:23 AM By Stu Sjouwerman

This is a discussion on Reddit, where a (presumably Polish) malware coder and botnet operator very candidly answers questions from people. This is a fascinating but rather technical read, ...

CyberheistNews Vol 2, #21

May 9, 2012 9:52:07 AM By Stu Sjouwerman

News - FBI warns against malware installed via hotel networks

May 9, 2012 3:59:59 AM By Stu Sjouwerman

The Internet Crime Complaint Center had this 'Intelligence Note': "Recent analysis from the FBI and other government agencies demonstrates that malicious actors are targeting travelers ...

Interpol President: "80% of Internet Crime Is Organized International Gangs."

May 9, 2012 3:04:52 AM By Stu Sjouwerman

Fresh from Yahoo News by Steve Weizman: "Interpol president Khoo Boon Hui said on Tuesday that organised international gangs are behind most internet scams and that cyber crime's ...

The personal cloud will eclipse the PC

May 8, 2012 9:40:29 AM By Stu Sjouwerman

The personal cloud is poised to eclipse the PC as the hub of consumers' digital lives by 2014 as rapid growth in the use of apps and services introduces a new paradigm for how people ...

The Average Cyberespionage Attack Goes On For 416 Days

May 6, 2012 3:03:48 AM By Stu Sjouwerman

WIRED Mag has a great article by Kim Zetter. It boils down to the fact that high-level hackers are able to get and stay in your network. And even if you are able to kick them out, they ...

The evolution of Business Cards

May 4, 2012 9:44:07 AM By Stu Sjouwerman

I just got a 'perk' over at the Klout site, which gives you a score how you do in Social Media. The perk was 50 business cards, each with a different backside if you want to. The company ...

Symantec Report Says User Behavior is Root of Most Breaches

May 4, 2012 8:51:55 AM By Stu Sjouwerman

Tracy Kitten over at BankInfoSecurity spotted something interesting in Symantec's recent Internet Security Threat Report. This is the upshot: "Which Internet security threats pose the ...

No Exploit Required: How Attackers Exploit Business Logic Flaws

May 4, 2012 4:15:34 AM By Stu Sjouwerman

Kelly Jackson Higgins over at Dark Reading had a very interesting article: "Cyberattacks don't always employ exploited vulnerabilities: Sometimes they prey on weaknesses in the business ...

$1,000 Walmart Gift Card Scam Inflates Your Phone Bill

May 4, 2012 3:04:56 AM By Stu Sjouwerman

We have seen crooked Walmart gift card offers before, but now and then I run across one that's craftier than earlier versions. And as usual, you do not get the gift card, but a high dose ...

How To Land A Cybersecurity Job

May 3, 2012 6:03:05 AM By Stu Sjouwerman

Just found an article in NetworkWorld by Carolyn Duffy Marsan that is very interesting. Here is a snippet: "One specific skill related to cloud security that's in demand: SAML. The ...

Proof: Antivirus Only Defends Against Low-skilled Attackers

May 3, 2012 4:40:59 AM By Stu Sjouwerman

The SANS Computer Forensics and Incident Response team built a real-life network for their students so they could learn how to hack into the network. They put McAfee enterprise endpoint ...

Scam Of The Week: Fake Storage Upgrades

May 3, 2012 3:29:51 AM By Stu Sjouwerman

Phishers are now offering fake storage upgrades. Symanted reported: "Customers of popular email service providers have been a common target for phishers for identity theft purposes. ...

CISPA fight far from over. A Guide To The Cybersecurity Bill Alphabet Soup

May 3, 2012 2:42:35 AM By Stu Sjouwerman

Stefanie Hoffman over at Fortinet took the time to summarize the current cybersecurity bills. This fight is far from over, so you might want to take a look at what's cooking at Capitol ...

CyberheistNews vol 2, #20

May 2, 2012 7:19:45 AM By Stu Sjouwerman

CyberheistNews Vol 2, #20 Editor's Corner [caption id="attachment_1367" align="alignleft" width="150" caption="Stu"][/caption] Warn Your Users: NY Traffic Ticket Phish This phish is a ...

Bogus PayPal payment alert causes malware infection

May 2, 2012 3:12:03 AM By Stu Sjouwerman

Gary Warner just reported: "A new malicious spam campaign has just launched this morning targeting Paypal users. This malware campaign attempts to "social engineer" users into clicking a ...

Cybercrime uses hidden file extensions to trick users

May 2, 2012 3:00:26 AM By Stu Sjouwerman

Symantec contributor Fred Gutierrez shows clearly in this blog post why it can be deadly to click on a .JPG file: "Cybercriminals have continuously evolved their methods throughout the ...

Make sure 'challenge questions' aren't a backdoor into your account!

Apr 30, 2012 9:21:33 AM By Stu Sjouwerman

The Lookout Mobile Security Blog pointed out something important. Patty talked about the man who hacked hollywood: "Finding a working e-mail address was a simple process of trial and ...

Omaha cast net that caught cyberthieves

Apr 29, 2012 8:24:21 AM By Stu Sjouwerman

Matthew Hansen, World-Herald Staff Writer just wrote a great article that illustrates what I have been warning about these last years. It starts out like this: "Imagine for a moment that ...

Hacking The Hackers: A Counter-Intelligence Operation

Apr 28, 2012 7:27:46 AM By Stu Sjouwerman

Marc Weber Tobias, a contributor to Forbes Magazine wrote a very interesting article: "One of our security lab team members is an ex-cyberspook who spent his career in the military doing ...

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