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 Internet Crime Report Released: The Evolving Threat and Importance of Reporting

Feb 12, 2020 10:42:48 AM By Stu Sjouwerman

The FBI's Internet Crime Complaint Center released its 2019 Internet Crime Report, and by no surprise the bad guys and new scams show no signs of stopping anytime soon. Last year the ...

Seasonal Scams: Valentine's Day Edition

Feb 12, 2020 8:37:14 AM By Stu Sjouwerman

Romance scams and confidence scams cause both emotional and financial pain. According to the latest FBI's Internet Crime Complaint Center (IC3) figures for 2019, confidence/romance scams ...

DOJ Charges Hackers from the Chinese People Liberation Army with 2016 Equifax Data Breach

Feb 12, 2020 6:42:42 AM By Stu Sjouwerman

Four hackers have been charged with hacking the U.S. credit reporting agency where data on U.S. citizens and proprietary Equifax secrets were stolen.

Email Account Takeover Attacks Get Smarter, Sophisticated, and More Patient

Feb 12, 2020 6:38:46 AM By Stu Sjouwerman

New data from Barracuda shows attackers take their time to leverage the credential compromise and to avoid detection when taking over email accounts.

FTC Alert: Coronavirus Scammers Love Scary Bad News

Feb 11, 2020 4:19:10 PM By Stu Sjouwerman

Scary news stories in the headlines always bring out the bad guys looking to make a quick illegal buck.

CyberheistNews Vol 10 #7 Now You Can Learn How to Forensically Examine Phishing Emails and Better Protect Your Organization

Feb 11, 2020 12:09:28 PM By Stu Sjouwerman

Most British Breaches Traced to Human Error

Feb 11, 2020 8:21:38 AM By Stu Sjouwerman

90% of data breaches in the UK during 2019 were caused by human mistakes, Infosecurity Magazine reports. CybSafe analyzed all the data breach reports received by the UK Information ...

Safer Internet Day: What You Can Do to Stay Safe

Feb 11, 2020 8:15:00 AM By Stu Sjouwerman

February 11, 2020 is Safer Internet Day, a worldwide event aimed at promoting the safe and positive use of digital technology for all users, especially children and teens. This year's ...

One Pricy Hospital Bill: Ransomware Attack Costs Hospital $1 Million, Requiring Notice to Municipal Bond Holders

Feb 10, 2020 2:55:05 PM By Stu Sjouwerman

Most organizations think about the impact of a ransomware attack being limited to recovery, legal, PR, and perhaps paying the ransom. In this case bond holders could take a hit.

Ransomware Attacks Increase 41 Percent as Cybercriminals Double-Down on Taking Your Money

Feb 10, 2020 2:48:29 PM By Stu Sjouwerman

New data from New Zealand security firm Emsisoft shows that more organizations are being successfully being attacked and held for ransom, putting operations at risk.

Education is Necessary to Stay Ahead of Threats

Feb 10, 2020 8:27:49 AM By Stu Sjouwerman

Most people don’t realize how vulnerable they are to social engineering until they experience it, according to Anna Collard, the founder of KnowBe4’s South African security awareness ...

Phishing Attacks Use Victim Interest in Oscar-Nominated Movies to Steal Credit Cards, Install Malware

Feb 7, 2020 4:28:45 PM By Stu Sjouwerman

People wanting to watch high-profile movies are the latest target in scams that trick users into offering up credit card details for a chance to download films not yet available for ...

[Heads-up] New Ransomware Strain Hijacks A Vulnerable Windows Driver To Turn Off Your Antivirus And Infect The Network

Feb 7, 2020 10:01:01 AM By Stu Sjouwerman

Security company Sophos warns of a new ransomware strain that uses a vulnerable driver in an attempt to break into a Windows system and then disable the running security software.

Trenton School Treasurer Spots a 'Phishing Expedition'

Feb 7, 2020 8:47:46 AM By Stu Sjouwerman

Someone went on a ‘phishing expedition’ trying to trick a Trenton School Board of Education member into transferring thousands of dollars into their account, but a Trenton School ...

Another SMS Scam

Feb 7, 2020 8:19:19 AM By Stu Sjouwerman

A new PayPal SMS phishing campaign is making the rounds, according to Paul Ducklin at Naked Security. The text messages in this campaign purport to come from PayPal and inform recipients ...

SEC Releases Results of Cybersecurity and Resiliency Practices Examinations

Feb 6, 2020 6:55:36 PM By Stu Sjouwerman

The SEC’s Office of Compliance Inspections and Examinations (OCIE) published a new report on the findings from examining the methods used by market participant organizations.

Ransomware Attack Leaves Logistics Company with Disabled Systems, Manual Processes, and Customer Delays

Feb 6, 2020 6:53:19 PM By Stu Sjouwerman

The devastation after a ransomware attack on global logistics company Toll Group demonstrates the impact a simple ransomware attack can have on operations.

Email Test Finds More Than 50% of Kingston School District Employees Vulnerable to Phishing

Feb 6, 2020 6:49:03 PM By Stu Sjouwerman

More than half of the people who have Kingston school district email accounts opened a potentially damaging phishing email sent to them by a firm that's helping the district gauge ...

January Content Update: Including the new 2020 KnowBe4 Social Engineering Red Flags Training Module

Feb 6, 2020 5:14:48 PM By Stu Sjouwerman

Here are a few important updates to share with you from the month of January.

Anatomy of a Rental Phishing Scam

Feb 6, 2020 3:34:28 PM By Stu Sjouwerman

There was an unsuccessful phishing attempt that security professional Jeffrey Ladish almost fell for. Jeffrey was house searching and was looking on Craigslist and Zillow for rental ...

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