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

Business Email Compromise Doubles in Incidents and Triples in Cost

Aug 9, 2019 5:54:07 PM By Stu Sjouwerman

The latest data from the U.S. government’s Financial Crimes Enforcement Network (FinCEN) shows fraud via business email is changing tactics and becoming more effective.

Email Attacks are Having A Major Impact on Business with Employees Seen as a Major Weak Link

Aug 9, 2019 5:38:08 PM By Stu Sjouwerman

With 82% of organizations facing an attempted email-based security threat in the past year, the impacts of these attacks are material and potentially harmful to the organization.

CEO Fraud hits B.C. lawyers for $2 million

Aug 9, 2019 3:12:16 PM By Stu Sjouwerman

Two B.C. law firms were targets of so-called social engineering frauds causing almost $2 million in real estate and investment funds to be wired to people other than clients the firms ...

KnowBe4 Fresh Content & Features Updates - July 2019

Aug 9, 2019 11:01:40 AM By Stu Sjouwerman

Check out the content and feature updates in the KnowBe4 platform for the month of July!

Confirm Your Unsubscribe Request? Not So Fast

Aug 8, 2019 9:40:33 AM By Stu Sjouwerman

An email phishing campaign that BleepingComputer describes as “long-running” has shown a distinct uptick recently. The phishbait in the subject line will read something like this: ...

Bad Guys Exploit CapitalOne Breach to Push Backdoor Trojan

Aug 7, 2019 3:56:29 PM By Stu Sjouwerman

The bad guys are now exploiting news of the CapitalOne breach to push a malicious backdoor trojan via a phishing email purporting to offer a Windows Security Update. See the attached ...

Pleading Guilty to Business Email Compromise

Aug 7, 2019 9:47:49 AM By Stu Sjouwerman

Amil Hassan Raage has taken a guilty plea to charges of fraud in a business email compromise (aka CEO fraud) case that netted him and his criminal co-conspirators almost three-quarters of ...

CyberheistNews Vol 9 #32 Scam of the Week: Equifax Settlement Phishing

Aug 6, 2019 9:43:16 AM By Stu Sjouwerman

CyberheistNews Vol 9 #32 Scam of the Week: Equifax Settlement Phishing Well, that did not take long! The Equifax Data Breach resulted in a settlement and those affected have a choice ...

[NEW PhishER Feature] Identify Email Threats Even Faster with PhishML™

Aug 6, 2019 9:31:21 AM By Stu Sjouwerman

We are excited to announce the availability of PhishML™ as part of the PhishER platform to all PhishER customers. PhishML is a new machine-learning module that helps you identify and ...

New UK Study: "3 out of 4 phishing scams get to your inbox untouched"

Aug 5, 2019 7:10:08 AM By Stu Sjouwerman

Chris Matyszczyk wrote: "Apple sends me so many invoices every week that I scarcely know what I've gone and bought. This appears to have also crossed the minds of researchers at the UK's ...

Why School Districts are Targets of Social Engineering

Aug 5, 2019 6:56:36 AM By Stu Sjouwerman

School districts are becoming increasingly popular targets for ransomware, with at least five of these attacks occurring in July, according to the New York Times.

Why Is Windows Defender The World's No. 1 Antivirus With More Than Half A Billion EndPoints?

Aug 3, 2019 11:16:31 AM By Stu Sjouwerman

Having been inside the AntiVirus software industry for quite a while, and building an AV tool from the ground up, when I saw Redmond start acquiring several small AV companies in 2008 and ...

GermanWiper Ransomware Hits Germany Hard, Destroys Files But Asks For A Ransom

Aug 2, 2019 6:35:55 PM By Stu Sjouwerman

For the past week, a new ransomware strain has been wreaking havoc across Germany. Named GermanWiper, this ransomware doesn't encrypt files but instead it rewrites their content with ...

Engineering Licensing as Phishbait

Aug 2, 2019 5:43:28 PM By Stu Sjouwerman

Researchers at Proofpoint have observed a state-sponsored spearphishing campaign targeting three US utilities companies. The emails convincingly posed as exam results from the National ...

Churches and Other Not-for-Profits as Targets of Scams

Aug 2, 2019 7:04:38 AM By Stu Sjouwerman

On this week’s episode of the CyberWire’s Hacking Humans podcast, Dave Bittner and Joe Carrigan discussed a story written by two lawyers for Church Law & Tax that warns of a type of ...

Freight Forwarding Email Scams are Business Killers

Aug 1, 2019 7:13:06 AM By Stu Sjouwerman

The Australian Cyber Security Centre (ACSC) has warned that multiple Australian IT suppliers have permanently closed their doors after falling victim to procurement scams, CRN reports. ...

Scam Of The Week: Equifax Settlement Phishing

Jul 31, 2019 3:55:21 PM By Stu Sjouwerman

Well, that did not take long! The Equifax Data Breach resulted in a settlement and those affected have a choice between free credit monitoring or a $125 payment.

Buyers of Facebook’s Libra Cryptocurrency are the Latest Target in Phishing Scams

Jul 31, 2019 3:25:57 PM By Stu Sjouwerman

Scammers are impersonating Facebook to trick potential buyers of Facebook’s new cryptocurrency into parting with their money.

Russian Phishing: Swiss-based Email Provider ProtonMail Hit By Cyber Attack

Jul 31, 2019 11:34:47 AM By Stu Sjouwerman

Reporters investigating Russian military intelligence have been targeted by highly sophisticated cyber attacks through their encrypted email accounts, with evidence suggesting Moscow was ...

CEO Fraud Phishing Scams Versus The U.K. Solicitors

Jul 31, 2019 10:56:48 AM By Stu Sjouwerman

The UK’s Solicitors Regulation Authority (SRA) has warned of another email scam that impersonated a real law firm in order to hijack a real estate transaction, according to Martin Parrin ...

Security Awareness Training Blog

View Topics