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

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ReVil Ransomware Threatens to Squeeze Their Victims with Public Exposure of Data

Dec 13, 2019 12:36:41 PM By Stu Sjouwerman

The REvil Ransomware crew are getting ready to put more pressure on their ransomware victims to pay up by threatening to release data if the ransom isn't paid.

Insurance Company On The Hook for 1.7 Million Dollars After Denying BEC Scam Claim

Dec 12, 2019 3:11:49 PM By Stu Sjouwerman

An article in the insurance Journal reports that the 11th Circuit Court in Atlanta agreed with a district court ruling that insurance company "Ironshore" is still on the hook for paying a ...

What's in it for the Social Engineers?

Dec 12, 2019 9:29:33 AM By Stu Sjouwerman

A necessary skill for any successful hacker is an understanding of how the human mind works, according to a post in IT Pro. Knowing how to manipulate technology is a major part of the ...

67% of UK Employees Flout Internal IT Security Rules

Dec 12, 2019 8:35:50 AM By Stu Sjouwerman

Businesses are leaving themselves unnecessarily exposed to significant security risks, it’s claimed by a cloud and IT business continuity services company, According to Databarracks’ data ...

MimeCast Warns of New Phishing Attacks in South Africa

Dec 10, 2019 1:32:48 PM By Stu Sjouwerman

With two new alerts regarding elevated risks of phishing attacks against consumers – one from DStv, and another from the New Development Bank – South Africans are warned to take care when ...

New Ransomware Attack Reboots Systems into Safe Mode to Bypass Antivirus!

Dec 10, 2019 11:15:48 AM By Stu Sjouwerman

The latest strain of Snatch ransomware performs a devious task to ensure tools designed to protect against ransomware are nowhere to be found during encryption.

CyberheistNews Vol 9 #50 [Heads Up] Iran Has Launched Evil New Malware That Wipes Your Windows Workstations

Dec 10, 2019 9:50:43 AM By Stu Sjouwerman

Social Engineering via Elder Scrolls

Dec 10, 2019 9:30:12 AM By Stu Sjouwerman

Scammers are going after Elder Scrolls Online accounts by posing as the game’s developers and informing players that their accounts will be banned unless they hand over their credentials, ...

Have Your Users Been Exposed in the 8.5 Billion Breached Records This Year?

Dec 10, 2019 9:00:00 AM By Stu Sjouwerman

Data breaches are getting bigger, the bad guys are getting more cunning, and the amount of compromised data is unfortunately continuing to rise. According to RiskBased Security, breach ...

Ransomware at Colorado IT Provider Affects 100+ Dental Offices

Dec 10, 2019 7:00:00 AM By Stu Sjouwerman

A Colorado company that specializes in providing IT services to dental offices suffered a ransomware attack this week that is disrupting operations for more than 100 dentistry practices, ...

Big Bad BEC

Dec 9, 2019 10:15:46 AM By Stu Sjouwerman

A Chinese venture capital firm was scammed out of $1 million in a noteworthy BEC (Business Email Compromise, or CEO fraud) scam, CyberScoop reports. The million dollars was supposed to be ...

Police warn of new 'line-trapping technology' being used to scam people over the phone

Dec 7, 2019 8:40:03 AM By Stu Sjouwerman

TORONTO -- A new piece of sophisticated technology is being used by fraudsters to scam unsuspecting people over the phone. Police said a woman in York Region received a call earlier this ...

KnowBe4 Content Updates and New Resources - November 2019

Dec 6, 2019 11:00:00 AM By Stu Sjouwerman

We've got a few important updates to share with you for the month of November!

63% of Workers Reuse Passwords For Multiple Work Devices and Applications

Dec 5, 2019 2:19:50 PM By Stu Sjouwerman

According to Enterprise Strategy Group, 63% of workers have reported using the same password for multiple work devices and/or applications. This just one statistic from ESG's upcoming ...

Feds Charge Russians In Massive $100 Million Bank Phishing Scheme

Dec 5, 2019 1:33:10 PM By Stu Sjouwerman

The U.S. Justice and Treasury departments took action Thursday against a Russian hacking group known as “Evil Corp.,” which stole “at least” $100 million from banks using phishing attacks ...

[Heads Up] Iran Has Launched Evil New Malware That Wipes Your Windows Workstations

Dec 5, 2019 8:16:15 AM By Stu Sjouwerman

Zak Doffman posted: "Iran’s state-sponsored hackers have deployed a new strain of malicious malware, warns IBM, which has been aimed at the “industrial and energy sectors” in the Middle ...

You Have Not Suffered A Data Breach But How Do You Prevent Credential-Stuffing Attacks?

Dec 5, 2019 7:02:26 AM By Stu Sjouwerman

Frequent data breaches and the widespread availability of automated tools to take advantage of the compromised information have greatly increased the efficiency of credential stuffing ...

[On-Demand Webinar] Spotting the Gaps: Is Your Traditional Security Stack Giving You a False Sense of Security?

Dec 4, 2019 8:00:00 AM By Stu Sjouwerman

Endpoint security, firewalls, VPNs, authentication systems… we’ve all got them. But do they really provide the comprehensive level of security your organization needs to keep the bad guys ...

Europol Finds Majority of Attack Groups Rely on Spear Phishing as Primary Infection Vector

Dec 4, 2019 6:52:41 AM By Stu Sjouwerman

A new report from Europol’s European Cybercrime Center (EC3) breaks down how targeted phishing attacks are being done, and how to avoid becoming a victim.

Gift Card Scams are Decreasing in Light of Other Business Email Compromise Scams

Dec 4, 2019 6:48:49 AM By Stu Sjouwerman

New data from email security vendor Agari shows Business Email Compromise (BEC) attacks shifting tactics last quarter, in favor of scams resulting in larger payouts.

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