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

[Heads-up] Ransomware attack forces Arkansas CEO to fire 300 employees days before Christmas

Dec 27, 2019 11:29:56 AM By Stu Sjouwerman

The chief executive officer of a telemarketing company in Sherwood, Arkansas has let go 300 employees after the company failed to recover from a ransomware infection a few months back.

PayPal Scammers Want More than Just Your PayPal Credentials

Dec 27, 2019 9:30:25 AM By Stu Sjouwerman

Researchers at ESET have come across phishing sites that try to steal PayPal logins along with a wide range of personal and financial information. The scam begins with phishing emails ...

Veterans are High-Payoff Social Engineering Targets for Scammers

Dec 27, 2019 9:05:27 AM By Stu Sjouwerman

Veterans are particularly valuable targets for various types of social engineering attacks, according to Mary K. Talbot at the Providence Journal. Veterans are often respected leaders in ...

WIRED: "The Decade Big-Money Email Scams Took Over"

Dec 26, 2019 2:46:27 PM By Stu Sjouwerman

Excellent article in WIRED, where they observed that In the last few years, the "Nigerian prince" scams have gotten a major upgrade. Here is an extract and a link to the full article:

FBI Issues Alert For "Sleeper" LockerGoga and MegaCortex Ransomware

Dec 26, 2019 2:37:28 PM By Stu Sjouwerman

The FBI has issued a warning to private industry recipients to provide information and guidance on the LockerGoga and MegaCortex Ransomware.

Star Wars Rogue One: A Phish Story

Dec 26, 2019 10:16:45 AM By Stu Sjouwerman

We’ve heard that scammers are exploiting the release of the new Star Wars movie by distributing malware disguised as free copies of the film. But what if we turned this on its head and ...

These Aren't the Droids You're Looking For

Dec 26, 2019 9:54:16 AM By Stu Sjouwerman

Researchers at Kaspersky have identified sixty-five malicious files masquerading as online copies of Star Wars: The Rise of Skywalker, TechRepublic reports. The files are spread via ...

How Phishing is Evolving

Dec 23, 2019 10:10:12 AM By Stu Sjouwerman

Attackers are always using new tactics to stay ahead of defenders, and Microsoft’s Office 365 Threat Research Team describes three noteworthy phishing techniques they’ve observed in 2019. ...

Whaling: Like Phishing, but After Bigger Game

Dec 23, 2019 9:55:53 AM By Stu Sjouwerman

Organizations have to acknowledge their responsibility for ensuring their employees are able to recognize targeted phishing attacks, according to James McGachie, Legal Director of DLA ...

CyberheistNews Vol 9 #52 [Heads-Up] 1000+ Schools Hit by Still Active Ransomware Attack Wave

Dec 23, 2019 9:43:13 AM By Stu Sjouwerman

Top 9 IT Security Trends You Need to Watch Out For in 2020

Dec 20, 2019 10:12:12 AM By Stu Sjouwerman

Cyber security and security awareness training landscapes are constantly changing. IT Professionals, like you, always need to know what is coming next in order to build (and maintain) ...

Royal Mail Scam: Sorry, You Haven't in Fact Won that iPhone 11 Pro

Dec 19, 2019 9:42:55 AM By Stu Sjouwerman

An SMS phishing scam is targeting people in the UK with fake notifications that appear to come from the Royal Mail postal service, The Sun reports. The messages are personalized, and they ...

1000+ Schools Hit In October Alone By Still Active Ransomware Attack Wave

Dec 18, 2019 12:26:29 PM By Stu Sjouwerman

October was the first month we got some visibility on how the bad guys are now targeting school districts and students across the USA in a wave of new ransomware attacks. This attack is ...

Best Practices for Creating Order from Phish Reporting Chaos

Dec 18, 2019 9:00:00 AM By Stu Sjouwerman

When Greg Kras, KnowBe4’s Chief Product Officer, first rolled out our Phish Alert Button (your users can use it to report suspicious emails), he thought it would be a great way for you to ...

Financial Advisor Fined After Falling for BEC Scam

Dec 18, 2019 8:23:32 AM By Stu Sjouwerman

The Financial Industry Regulatory Authority (FINRA) fined and temporarily suspended a financial advisor working for UBS after he was tricked into transferring $511,870 from a client’s ...

[NEW RISK] The MAZE Ransomware Gang Outs Their Victims On A Public Web Site

Dec 17, 2019 1:36:20 PM By Stu Sjouwerman

In a continuing escalation of its extortion tactics, independent security researcher, Brian Krebs reported on Krebsonsecurity.com that the criminals behind the MAZE Ransomware gang just ...

CyberheistNews Vol 9 #51 Police Warn of New 'Line-Trapping Technology' Being Used to Scam People Over the Phone

Dec 17, 2019 10:03:35 AM By Stu Sjouwerman

Money Mules and Evil Corp.

Dec 17, 2019 9:32:59 AM By Stu Sjouwerman

Last week we reported that the U.S. Justice and Treasury Departments filed charges against and placed sanctions on the members of “Evil Corp.,” the criminal group behind the Dridex ...

Spear Phishing in the Royal Canadian Mint

Dec 16, 2019 9:22:18 AM By Stu Sjouwerman

The Royal Canadian Mint, which produces Canada’s coins, nearly sent an employee’s paycheck to an attacker following a spear phishing attack, CBC News reports. The attacker sent an email ...

Mysterious Global Phishing Campaign Uncovered

Dec 13, 2019 5:55:48 PM By Stu Sjouwerman

A mysterious phishing campaign was spotted by threat researchers from Anomali. The global credential gathering phishing campaign was directed primarily at government procurement ...

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