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

Cybercrime: Bank of America Joins Trusteer Ranks

Apr 1, 2011 7:18:27 AM By Stu Sjouwerman

Look what just showed up in my colleague's e-mail inbox this morning: I wrote in moderate detail about Trusteer in a blog post right here entitled " Cyberheist Snippet 4: More on Trusteer ...

Cybercrime in Your Business

Mar 31, 2011 10:53:44 AM By Stu Sjouwerman

Cybercrime: Ventura County, CA Credit Card Tax Payment System Hacked

Mar 30, 2011 3:38:54 AM By Stu Sjouwerman

Ventura County, California, is a small small county (population: 802,983 according to 2009 numbers from the US Census Bureau) north of the greater Los Angeles area. According to a March ...

Successful certificate cybercrime obtains legit Web certificates

Mar 28, 2011 9:36:34 AM By Stu Sjouwerman

In a recent 3/23/2011 article entitled " Hack Obtains 9 Bogus Certificates for Prominent Websites; Traced to Iran," Wired Threat Level reports on a spectacular cyberheist of credentials ...

Cybercrime: Fascinating 3-Part Series on Russian Cyber-Mafia in NetworkWorld

Mar 25, 2011 5:27:24 AM By Stu Sjouwerman

Talk about turning classwork into pure gold and professional kudos: Norwich University undergraduate student and ROTC cadet Bradley Guinen has teamed up with his instructor and ...

Rustock Botnet Cybercrime Takedown, Thanks to MS-Led Multi-Party Effort

Mar 23, 2011 11:53:13 AM By Stu Sjouwerman

The infamous Rustock botnet, estimated by some parties to be responsible for between 30 and 50 percent of all the spam in the world—up to 30 BILLION items per day—has been taken down. ...

Symantec's Latest 'State of Spam & Phishing' Report

Mar 21, 2011 12:47:30 PM By Stu Sjouwerman

Report #51 from Symantec, the "State of Spam & Phishing" for March 2011 is out. From the phishing side, the news is grim but not unexpected. Phishing is up 38.56% for the month, ...

M86 Security Documents Clever New HTML-based Phishing Scam

Mar 21, 2011 10:45:36 AM By Stu Sjouwerman

In the ongoing game of cops-and-robbers that network security so often involves, the cops have recently upped the ante on phishing detection in modern Web browsers. These days browsers ...

APWG Website Is a Great Anti-Phishing Resource

Mar 16, 2011 4:17:13 AM By Stu Sjouwerman

Online Bank Cyberheists Reach Higher and "Restoration of Lost Funds"

Mar 14, 2011 7:07:22 AM By Stu Sjouwerman

The insurance industry trade Web site insuranceheadlines.com recently republished a fascinating story from Bloomberg dated June 18, 2010. It's entitled "Banking's big dilemma: How to stop ...

Cybercrime: M86 Security Creates Security Suite for SMBs

Mar 11, 2011 5:44:17 AM By Stu Sjouwerman

Internet threat management company M86 Security recently announced a brand-new small business security suite that promises to help small businesses get a workable handle on their security ...

Phishing: Malware Infected Web Sites Experience Explosive Growth

Mar 10, 2011 10:22:52 AM By Stu Sjouwerman

Heh! Heh! We're not sure if we were alarmed by the content in this recent CrunchGear blog post, or captivated by the cute "malweb critter" used to give the story a little visual interest ...

Cybercrime: Beware of Fake IRS "Instant Return" or "Direct Deposit" Scams

Mar 6, 2011 11:55:39 PM By Stu Sjouwerman

This is a a good news/bad news blog. The good news is that because April 15 falls on a Friday this year, the filing deadline has been extended until April 18. The bad news is with tax ...

DNS Cyberheist Hijack Prompts Credit Card Credential and Other Compromises

Mar 4, 2011 4:32:50 AM By Stu Sjouwerman

An interesting tidbit has emerged from the eCrime Trends Report for Q4-2010 from online security firm Internet Identity (aka IID). Over the Christmas holidays, an online payment ...

Two New Cyberheist Spyware Programs Can Infect Android Phones

Mar 2, 2011 7:48:48 AM By Stu Sjouwerman

According to this story at CSOOnline. com (" More Mobile Spyware Hits Android"), security software firm NetQin Mobile, Inc. has captured a pair of new spyware programs from the wild that ...

Cybercrime: IC3 2010 Annual Report on Internet Crime Hits the Web

Mar 1, 2011 8:09:51 AM By Stu Sjouwerman

[caption id="attachment_343" align="aligncenter" width="300" caption="The latest IC3 Internet Crime Report makes for interesting reading"] [/caption] Last week, the Internet Crime ...

Cybercrime is here to stay...

Feb 28, 2011 10:42:26 AM By Stu Sjouwerman

In a recent story for PC World, veteran security writer (and former About.com security guru) Tony Bradley's headline says it all " Cybercrime: A Recession-Proof Growth Industry." In that ...

SmartPhones Increasingly Targeted for Cybercrime, Spam and Attack

Feb 28, 2011 10:41:17 AM By Stu Sjouwerman

In its most recent Threats Report for Q4 2010 (.PDF), network security company McAfee points out what they call "a steady growth of threats to mobile platforms," with smartphones ...

Cyberheist: Another Bank Suit Seeks to Recover from Security Issues

Feb 28, 2011 10:40:27 AM By Stu Sjouwerman

[caption id="attachment_334" align="aligncenter" width="444" caption="Story Header from YourMoneyIsNotSafeInTheBank.org"] [/caption] As reported on YourMoneyIsNotSafeInTheBank.org, ...

FFIEC Rewrites Its Rules For Banks to Enhance Security, Prevent Cyberheist

Feb 25, 2011 6:39:30 AM By Stu Sjouwerman

The latest edition of the "Your Money Is Not Safe In The Bank" newsletter (sign up on their home page) takes a look at the new authentication guidelines about to be issued from the ...

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