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

[NEW FEATURE] AI-Driven Phishing Helps Admins Deliver a Personalized Simulated Phishing Experience to Each User

May 6, 2021 4:50:21 PM By Stu Sjouwerman

We are excited to announce the availability of KnowBe4’s new AI-Driven Phishing feature. The KnowBe4 phishing platform now leverages machine learning to recommend and deliver informed and ...

Strange Chinese APT Interest in Buying Batches of AV Products

May 6, 2021 9:40:50 AM By Stu Sjouwerman

The Chinese military unit was recently accused of carrying out a years-long cyber espionage. The accusation from Japanese authorities was due to China's People Liberation Army buying ...

New IceID Phishing Attack Targets Website Owners Using Image Copyright Infringement as The Hook

May 6, 2021 9:00:16 AM By Stu Sjouwerman

Spotted by the Microsoft 365 Defender Threat Intelligence Team, this new phishing attack threatens legal action to trick victims into installing information-stealing malware.

W-2 Form Office 365 Credential Scam Creatively Uses Typeform Service to Bypass Security Checks

May 6, 2021 8:59:44 AM By Stu Sjouwerman

By creating phishing site pages using an online service for building surveys and forms, scammers figured out an original way to trick users out of their Office 365 credentials.

Cybersecurity Spend Is Now More Than 20% of the Average IT Budget As 91% of Organizations Suffering an Attack had Operations Impacted

May 6, 2021 8:58:25 AM By Stu Sjouwerman

The latest data from the Hiscox Cyber Readiness Report highlights how organizations are experiencing cyber threats and how they are responding to increase their readiness for next time.

[HEADS UP] New Malware Families Found in Phishing Campaign

May 5, 2021 1:36:54 PM By Stu Sjouwerman

Researchers from FireEye's security team found new malware families in a financial phishing campaign. The Malware strains are dubbed Doubledrag, Doubledrop, and Doubleback and have been ...

Genesis Market: a Study in the C2C Economy

May 5, 2021 8:55:19 AM By Stu Sjouwerman

Researchers at Digital Shadows describe Genesis Market, a criminal-to-criminal marketplace that aggregates and sells digital fingerprints to facilitate cyberattacks. The researchers say ...

A Snapshot of the Ransomware Landscape

May 4, 2021 11:23:33 AM By Stu Sjouwerman

Organizations need to take steps to disrupt the ransomware industry by making these attacks more expensive to carry out, according to Jen Miller-Osborn from Palo Alto Networks' Unit 42. ...

UK IT Decision Makers Fear Their Remote Workers Put Company Data at Risk for Data Breach

May 4, 2021 11:23:23 AM By Stu Sjouwerman

According to an annual survey from Apricorn, UK IT decision makers are fearing the worst as their staff continues to work in a remote environment.

CyberheistNews Vol 11 #17 [Heads Up] Mobile Is Now a Big Problem: 97% of Organizations Experienced Attacks in 2020

May 4, 2021 10:14:09 AM By Stu Sjouwerman

Do Ransomware Gangs Restore Data, Even After They're Paid?

May 4, 2021 9:23:28 AM By Stu Sjouwerman

Only 8% of ransomware victims get all of their data back after paying the ransom, according to researchers at Sophos. The researchers found that, on average, victims who pay the ransom ...

The Cost of Remediating a Ransomware Attack More than Doubles and is Quickly Approaching $2 Million

Apr 30, 2021 12:25:12 PM By Stu Sjouwerman

With 54% of organizations unable to stop a ransomware attack before data is encrypted and operations are impacted, the increasing cost of ransomware remediation is troubling.

U.K. Royal Mail-related Phishing Scams Are Up 645%

Apr 30, 2021 12:25:08 PM By Stu Sjouwerman

New data from CheckPoint highlights how scammers are using simple shipping-related social engineering scams to trick victims into giving up personal information and credit card details.

Ransomware Operators Threaten to Short Victims’ Stocks

Apr 29, 2021 10:33:38 AM By Stu Sjouwerman

The Darkside ransomware operators are now offering to tip off unscrupulous stock traders before they post the names of publicly traded victim companies, the Record reports. The criminals ...

Ransomware Demands Spike by 43% Already in 2021

Apr 29, 2021 10:33:30 AM By Stu Sjouwerman

Cybercriminal groups are increasing their automated and tactical ransomware attacks. Unfortunately, that also means they have an increase in greed.

[HEADS UP] Ransomware Gangs are Creating Ransomware Cartels

Apr 29, 2021 10:33:20 AM By Stu Sjouwerman

Analysis by threat intelligence group Analyst1 recently uncovered that the bad guys are responsible for forming a ransomware cartel.

Scammers Target Rogers Customers With SMS Messages

Apr 29, 2021 10:33:17 AM By Stu Sjouwerman

Scammers are targeting Rogers customers with text messages offering $50 refunds, according to BleepingComputer. The Canadian telecommunications provider suffered a widespread outage last ...

Federal Reserve Chairman Jerome Powell Cites Cyberthreats as Current “Biggest Concern” to Financial Institutions

Apr 29, 2021 10:25:54 AM By Stu Sjouwerman

Fears of a resurgence of COVID-19 and increased cyberattacks are mentioned as top risks that can materially impact the finance sector and the economy, by Jerome Powell in a recent ...

Researchers Warn of EtterSilent Facilitating Risky Malware Delivery

Apr 29, 2021 10:25:23 AM By Stu Sjouwerman

Cybercriminals are using a new malicious document builder dubbed “EtterSilent,” according to researchers at Intel 471. The builder is used to craft Microsoft Office documents with macros ...

Lazarus Group Uses New Technique to Avoid Detection

Apr 29, 2021 10:25:03 AM By Stu Sjouwerman

North Korea’s Lazarus group is using an interesting method to evade security measures, according to researchers at Malwarebytes. The threat actor is sending phishing emails with malicious ...

Security Awareness Training Blog

View Topics