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

Global Phishing Campaign Targets Universities

Sep 16, 2019 6:31:25 AM By Stu Sjouwerman

Researchers at Secureworks’ Counter Threat Unit (CTU) have been tracking a major phishing campaign that’s using library-themed emails to target more than sixty universities around the ...

Germany Gets Hit With Destructive Filewiper Phishing Attack

Sep 16, 2019 2:00:00 AM By Stu Sjouwerman

Cyber security remains the biggest threat to business in Africa

Sep 13, 2019 11:30:45 AM By Stu Sjouwerman

CAPE TOWN – African business owners who attended the World Economic Forum (WEF) on Africa in Cape Town have flagged cybersecurity as the biggest threat to business.

KnowBe4 #4 on eSecurity Planet Top 15 Cybersecurity Companies

Sep 13, 2019 10:00:56 AM By Stu Sjouwerman

We were excited to hear that eSecurity Planet worked with Gartner and Cybersecurity Ventures to compile a ranking of the Top Cybersecurity Companies. They listed the Top 15 and KnowBe4 ...

Holy SIMoly! Simjacker: SIM Card Attack Used to Spy on Mobile Phone Users

Sep 12, 2019 4:38:54 PM By Stu Sjouwerman

Phishing Nightmare? New "Deadline" Email From Equifax Settlement Administrator Notifies of Changes in Filing.

Sep 12, 2019 3:10:42 PM By Stu Sjouwerman

You’d better check your email queue for a new email from The Equifax Breach Settlement Administrator that was sent out several days ago to those who previously filed a claim. It will ...

[On-Demand Webinar] Crafty Ways the Bad Guys Use Pretexting to Own Your Network

Sep 12, 2019 1:44:01 PM By Stu Sjouwerman

Today’s phishing attacks have evolved way beyond spray-and-pray emails that mass target victims. Instead, the bad guys have carefully researched your organization in order to set the ...

Ethical Hackers as Educators

Sep 12, 2019 6:33:42 AM By Stu Sjouwerman

Ethical hackers are especially well-positioned to use their knowledge of attack techniques to educate people, according to Zoë Rose, a white-hat hacker based in the UK. On the CyberWire’s ...

FBI Cyber Warning: Attacks On Key Employees Up 100%, As 281 Are Arrested

Sep 12, 2019 6:21:21 AM By Stu Sjouwerman

Zak Doffman, contributor at Forbes reported: "There is a cyberattack epidemic hitting businesses around the world, targeting individuals responsible for requesting fund transfers or ...

The Legal Profession's Catfishing Problem

Sep 11, 2019 8:25:59 AM By Stu Sjouwerman

Scammers frequently impersonate lawyers in fraudulent emails in order to get recipients to take those emails seriously, according to Victoria Hudgins at Legaltech News. Legal threats or ...

The FBI Updates Their Numbers And BEC Is Now A 26 Billion Dollar Scam

Sep 10, 2019 1:32:55 PM By Stu Sjouwerman

FBI's Internet Crime Complaint Center (IC3) says that Business Email Compromise (BEC) scams —aka CEO Fraud—are continuing to grow every year, with a 100% increase in the identified global ...

CyberheistNews Vol 9 #37 [Heads-Up] Are Your Servers Right Now Infected With Stealthy Lilu Ransomware? Thousands Are...

Sep 10, 2019 9:35:13 AM By Stu Sjouwerman

Cybersecurity: 99% of email attacks rely on victims clicking links

Sep 10, 2019 6:57:48 AM By Stu Sjouwerman

Danny Palmer at ZDNet had the scoop: "Social engineering is by far the biggest factor in malicious hacking campaigns, warn researchers – so how can it be stopped?"

Nemty Ransomware Infests Bogus PayPal Site

Sep 10, 2019 6:45:31 AM By Stu Sjouwerman

BleepingComputer describes a PayPal phishing site that’s delivering a new strain of Nemty ransomware. The attackers used Unicode characters from different alphabets to make their URL look ...

Visa Scam in the UK Targets Chinese Students

Sep 10, 2019 6:39:56 AM By Stu Sjouwerman

Scammers are using bogus threats of deportation to coerce Chinese students studying in the UK into handing over tens of thousands of dollars, the Guardian reports. The scammers are posing ...

Cybercriminals Unleash Ransomware Attack Designed to Compromise the Security of 120 French Hospitals

Sep 10, 2019 6:31:49 AM By Stu Sjouwerman

A ransomware infection has left one hospital in a group of 120 resorting to pen and paper as they work to remediate an attack custom-designed to attempt to take down all 120.

Targeted Business Email Compromise Now Includes Validating Your Email

Sep 10, 2019 6:25:56 AM By Stu Sjouwerman

A new scammer group out of Nigeria is taking additional steps to verify email addresses are valid before launching BEC campaigns designed to commit fraud.

Two-Thirds of Security Budgets Expected to Increase as Risk of Cyberattack Shifts to the Cloud

Sep 10, 2019 6:21:00 AM By Stu Sjouwerman

Organizations are feeling the impact of attacks and are taking tangible steps to lock in budget specifically to address security concerns with Cloud Security seeing the largest increase.

Social Media and Their Exploitation in Social Engineering

Sep 9, 2019 7:04:30 AM By Stu Sjouwerman

Phishing is most commonly associated with email, but social media are quickly becoming a major hunting grounds for scammers, according to Elliot Volkman from PhishLabs. Social media ...

U.K. Charity Workers Most At Risk From Phishing

Sep 7, 2019 8:35:41 AM By Stu Sjouwerman

Tessian report finds a large amount of U.K. charity workers aren't getting proper security awareness training. Michael Moore at ITProPortal wrote: "UK charities are leaving themselves ...

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