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

Phishing Is Culprit Behind Vast Majority of Data Exfiltration, Intelligence Official Says

Mar 10, 2018 4:20:22 PM By Stu Sjouwerman

Phil Goldstein at FedTech magazine had some concerning news. "A top federal counterintelligence official says agencies must do more to harden their cybersecurity defenses, even if that ...

FTC Study: Millennials Are The Biggest Victims Of Social Engineering

Mar 10, 2018 11:23:45 AM By Stu Sjouwerman

A report from the FTC found that 40% of adults age 20-29 lost money to fraud, while only 18% of adults over the age of 70 did so, challenging the narrative of older adults falling victim ...

Half of Ransomware Victims Recovered Their Data After Paying the Ransom Demand

Mar 9, 2018 7:13:17 AM By Stu Sjouwerman

A massive survey of nearly 1,200 IT security practitioners and decision makers across 17 countries reveals that half the people who fell victim to ransomware infections last year were ...

More Security Awareness Training Market Perspectives

Mar 8, 2018 12:53:13 PM By Stu Sjouwerman

By Perry Carpenter, KnowBe4 Chief Evangelist and Strategy Officer A few weeks ago, I wrote about my thoughts regarding recent market moves by Microsoft, Wombat, PhishLine, and others. A ...

[ALERT] A Really Difficult Phishing Scenario That's Very Hard To Beat

Mar 7, 2018 7:08:21 AM By Stu Sjouwerman

I was alerted by a customer about a really difficult scenario that’s becoming all the more frequent. While there’s probably little that can be done in terms of tuning your spam filters ...

Email Security Vulnerability Affects Half of the Internet's Servers

Mar 6, 2018 5:45:27 PM By Stu Sjouwerman

Our friends at Bleepingcomputer wrote: "A critical vulnerability affects hundreds of thousands of email servers. A fix has been released but this flaw affects more than half of the ...

Phishing Via Social Media Up 100 Percent

Mar 6, 2018 2:25:03 PM By Stu Sjouwerman

Fabian Libeau at InformationSecurityBuzz wrote: "The most interesting trend to surface in Q4 of RiskIQ’s phishing report was a 100 percent increase in phishing campaigns leveraging social ...

New Phishing Security Test - See How You Compare to Peers in Your Industry!

Mar 6, 2018 10:42:12 AM By Stu Sjouwerman

We've got something really cool for you: the new Phishing Security Test v3.0!

CyberheistNews Vol 8 #10 Average Ransomware Attack Infects 16 Workstations, 5 Servers and 22 Users

Mar 6, 2018 9:00:00 AM By Stu Sjouwerman

W-2 information of Scottsboro City Schools employees compromised in phishing incident

Mar 6, 2018 7:28:29 AM By Stu Sjouwerman

SCOTTSBORO, Ala. - The information of Scottsboro City Schools employees became compromised after a phishing scam hit the payroll department. The superintendent issued a letter addressed ...

Some Important News From KnowBe4. Please Read This Now

Mar 5, 2018 2:09:39 PM By Stu Sjouwerman

We've got four important things to cover, but we'll keep it short! 1) Save the Date for KnowBe4’s First Ever 2018 User Conference KB4-Con in Orlando, FL May 17 & 18 2) KnowBe4 Expands ...

[VIDEO] Avoid These 10 Common Security Awareness Training Program Fails

Mar 3, 2018 10:41:54 AM By Stu Sjouwerman

If you want to succeed with your organization's security awareness training program, here are some of the top "faux-pas" we have seen over the years that you should be sure to avoid:

Accenture Cyber Security Survey: 18% of Health Employees Would Sell Confidential Data

Mar 2, 2018 5:36:28 PM By Stu Sjouwerman

Those who said they were willing to sell the data would do so for as little as between $500 and $1,000. Alexandia Wilson at HealthLeadersMedia had some disconcerting news. "Patients trust ...

FBI Warns of Spike in W2 Phishing But Two Central Texas Employers Fall For The Scam

Mar 2, 2018 4:52:10 PM By Stu Sjouwerman

The FBI has joined the IRS in warning that W2 tax form phishing is on the rise. The US tax filing deadline is now less than a month-and-a-half away, and tax-themed phishing is trending ...

[On-Demand Webinar] What Most Computer Security Defenses Are Doing Wrong and How to Fix It

Mar 2, 2018 2:23:39 PM By Stu Sjouwerman

Most companies have huge gaps in their computer security defenses, and can be compromised at will by a determined hacker. The industry even has a term for it: “Assume Breach”. But it ...

Another Ransomware Variant Strikes Colorado DOT Days after Initial Attack

Mar 2, 2018 10:26:26 AM By Stu Sjouwerman

Colorado’s Department of Transportation (CDOT) has suffered an infection from another variant of the same ransomware family that attacked it just days earlier. On 1 March, a variant of ...

UK University Students Lose £100,000 to Phishing

Mar 1, 2018 10:19:19 AM By Stu Sjouwerman

Phishing technique aided by social engineering in the form of using social channels to friend victims and create fake events to get creds. UK university students have been conned out of ...

Almost One Quarter Of Canadians Have Clicked On A Phishing Link

Mar 1, 2018 9:54:12 AM By Stu Sjouwerman

TORONTO, March 1, 2018 /CNW/ - Online payment fraud like phishing is a growing trend, and Canadians are worried about it. According to a new survey conducted by Interac Corp., Canadians ...

Ad Network Uses Advanced Malware Technique To Conceal Cryptojacking Ads

Feb 28, 2018 4:46:51 PM By Stu Sjouwerman

I blogged a few days ago about a method to embed a crypto-mining script in a Word doc. Turns out an ad network has done an even better job! Arstechnica wrote: "Domain-name algorithms are ...

Financial phishing accounts for over 50% of all phishing attacks for the first time

Feb 28, 2018 2:25:50 PM By Stu Sjouwerman

In 2017 Kaspersky Lab’s anti-phishing technologies detected over 246 million user attempts to visit different kinds of phishing pages. Of those, over 53 per cent were attempts to visit a ...

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