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

FBI Finally Shuts Down Major Cybercrime Outfit Coreflood-Botnet

Jun 22, 2011 3:13:11 AM By Stu Sjouwerman

[caption id="attachment_1054" align="alignleft" width="210" caption="FBI Cybercrime Agent"][/caption] The FBI has scrubbed some 19,000 PCs that were infected with the Coreflood bot ...

Bank Gets Sued Over $2,000,000 Cyberheist

Jun 20, 2011 3:14:15 AM By Stu Sjouwerman

A judicial decision came down last week from a District Court in Michigan. Experi-Metal fell victim to a major cyberheist and then sued their bank (Comerica) over a nearly $2,000,000 ...

Cybercrime on the U.S. Senate

Jun 17, 2011 4:07:05 AM By Stu Sjouwerman

On Monday, the U.S. Senate confirmed a branch of its website was breached by a hacker group. U.S. Senate Majority Leader Reid and House Speaker Boehner appear disheartened in photo. Its ...

U.S. Government is asking the High-Tech Business Sector to Fight Cybercrime

Jun 15, 2011 2:23:03 AM By Stu Sjouwerman

The U.S. Department of Commerce is asking big technology players with significant online presence to develop and adopt a code of conduct to help stop cybercrime. The Department of ...

Cyberheist: International Monetary Fund

Jun 13, 2011 5:03:08 AM By Stu Sjouwerman

Unknown attackers have cyber heisted the International Monetary Fund, but there's been no indication as to what—if anything—the cyber criminals managed to get their hands on. According to ...

U.S. Company Suffers a $588,000 Cyberheist Judge Says Too Bad

Jun 10, 2011 2:22:22 AM By Stu Sjouwerman

[caption id="attachment_994" align="alignleft" width="262" caption="Cyber Judge"][/caption] Cyber security experts are expressing serious concern over a decision on a cyberheist lawsuit ...

The Stakes Rise in the War on Cybercrime

Jun 8, 2011 1:58:39 AM By Stu Sjouwerman

[caption id="attachment_986" align="alignleft" width="300" caption="North America Cyber Crime"][/caption] The U.S. government just very recently broadened its definition of what ...

Cybercrime Sophistication Borne Out by Recent Google Gmail Attack

Jun 6, 2011 6:28:34 AM By Stu Sjouwerman

[caption id="attachment_980" align="alignleft" width="308" caption="gmail-phishing"][/caption] In the cybercrime war being fought across international boundaries, the recent Gmail hack of ...

Scotland Yard launches New Cyber Squad Unit

Jun 4, 2011 10:51:14 AM By Stu Sjouwerman

[caption id="attachment_972" align="alignleft" width="191" caption="Scotland Yard Cybercrime Unit"][/caption] Janet Williams of Scotland Yards Cybercrime Unit, who takes the lead on ...

Opening the Network to Cybercrime: The 10 Biggest Security Breaches of 2011 to Date

May 30, 2011 3:00:15 AM By Stu Sjouwerman

[caption id="attachment_959" align="alignleft" width="300" caption="Network Cybercrime"][/caption] Despite the valiant efforts of network security companies and the vigilance of IT ...

Phishing Attacks Keep Proliferating: How to Recognize Them

May 27, 2011 3:38:08 AM By Stu Sjouwerman

[caption id="attachment_949" align="alignleft" width="237" caption="Phishing Attacks"][/caption] There is an article in eWEEK that highlights the gravity and growth of cybercrime. It ...

Phishing Your Own Employees is a Must!

May 25, 2011 3:35:54 AM By Stu Sjouwerman

Following is an excerpt from SC Magazine: For IT Security Professionals. It highlights the importance of educating organizational employees against the tactics cybercriminals will use to ...

FCC to Help Small Business by Raising Internet Security Awareness

May 23, 2011 3:05:14 AM By Stu Sjouwerman

[caption id="attachment_918" align="alignleft" width="300" caption="FCC Board"][/caption] The Federal Communications Commission (FCC) has recently launched an initiative to help small ...

Phishing Attacks Skyrocket 1200 Percent

May 18, 2011 4:02:13 AM By Stu Sjouwerman

[caption id="attachment_912" align="alignleft" width="300" caption="cybercrime skyrockets"][/caption] According to a recently released Microsoft Security Intelligence Report, phishing ...

U.S. Government Escalating Efforts to Fight Cybercrime

May 16, 2011 3:05:37 AM By Stu Sjouwerman

[caption id="attachment_903" align="alignleft" width="300" caption="U.S. Government"][/caption] If you were under the impression that all is well with your network security and that ...

Cybercrime On The Internet

May 13, 2011 3:50:52 PM By Stu Sjouwerman

BayNews 9 in Tampa Bay, Florida interviewed Margie Manning of Tampa Bay Business Journal about cybercrime on the internet and she features KnowBe4 and our Phishing Security Test! Check it ...

Common Sense Guidelines to Avoid a Cyberheist

May 11, 2011 3:02:36 AM By Stu Sjouwerman

[caption id="attachment_884" align="alignleft" width="300" caption="cyberheists"] [/caption] Social engineering, called phishing, happens all the time. Phishing leads to cybercrimes of ...

An Important Message about Cybercrime to All Organizations

May 9, 2011 4:37:38 AM By Stu Sjouwerman

[caption id="attachment_876" align="alignleft" width="300" caption="Social Engineering"][/caption] With the advent of social media websites like Skype, Facebook and Twitter, business ...

Cybercrime: Cyber Security Public Awareness Act of 2011 Introduced in US Senate

May 5, 2011 9:09:57 AM By Stu Sjouwerman

It was great to read that the "Cyber Security Public Awareness Act of 2011" was recently introduced in the US Senate. The purpose of the bill is to raise the public's security awareness, ...

Cybercriminals Abuse Free Domain Registration to Launch Phishing Attacks

May 3, 2011 3:31:46 AM By Stu Sjouwerman

A phishing survey released by the Anti-Phishing Working Group (APWG) in April 2011 indicates a record number of unique domain names were used for phishing attacks in the second half of ...

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