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

Be on the Watch for W-2 Phishing Scams!

Feb 19, 2021 1:20:58 PM By Stu Sjouwerman

With tax season just around the corner, this simple, yet effective social engineering theme is perfect to get users to respond to phishing attacks exactly the way the bad guys want.

The Cybersecurity Book You Should Read

Feb 18, 2021 2:00:57 PM By Stu Sjouwerman

Recently Cyber Defense Magazine released the top 100 cybersecurity books and the top recommended book is one of our Top Faves as well.

Popular Car Company Becomes Next Target in $20 Million Dollar Ransomware Attack

Feb 18, 2021 11:15:00 AM By Stu Sjouwerman

In an unfortunate situation popular car company Kia Motors America recently made headlines of a possible ransomware attack and the company was demanded to pay $20 Million ransom from a ...

KnowBe4 Named a January 2021 Gartner Peer Insights Customers’ Choice for Security Awareness Computer-Based Training Across Three Categories

Feb 18, 2021 10:54:52 AM By Stu Sjouwerman

KnowBe4 is excited to announce that we have been recognized as a Customers’ Choice across three categories in the January 2021 Gartner Peer Insights ‘Voice of the Customer’: Security ...

KnowBe4 Adds New Language Localization Options to its Security Awareness Training and Simulated Phishing Platform

Feb 18, 2021 10:00:00 AM By Stu Sjouwerman

We are excited to announce the availability of KnowBe4’s new localization options for the Admin Console and Learner Experience. You can now set your default language for three ...

The DOJ Charged Two Alleged Members of North Korea’s Military Intelligence Services With a Scheme That Included Attempts to Steal $1.3 Billion Over the Past Half-Decade for Pyongyang

Feb 18, 2021 8:52:09 AM By Stu Sjouwerman

Two alleged members of North Korea's military intelligence services were accused of hacking banks and companies in the U.S. and several other countries. The grand total for this scheme is ...

Redirection to Zero Days

Feb 18, 2021 8:30:29 AM By Stu Sjouwerman

Malvertisers exploited a zero-day vulnerability in the browser engine used by Safari and other iOS apps, according to Eliya Stein at Confiant. The vulnerability, which was patched earlier ...

Bogus Bug Reports as Phishbait, Scams

Feb 17, 2021 8:21:23 AM By Stu Sjouwerman

Some bug bounty seekers are using extortionist or fear-mongering tactics in an effort to get paid for reporting trivial flaws, according to Chester Wisniewski at Sophos. He calls them ...

Microsoft Finds 80% of Organizations Encounter an Increase in Security Threats Due to Remote Workers

Feb 17, 2021 8:15:00 AM By Stu Sjouwerman

Learning from last year’s shift to a remote workforce can help dictate how operations should evolve. New data from Microsoft points at the need to better secure remote workers.

Microsoft: SolarWinds attack took more than 1,000 engineers to create

Feb 16, 2021 10:25:55 AM By Stu Sjouwerman

You may have missed this extremely interesting bit of data that ZDNet just published. "Microsoft reckons that the huge attack on security vendors and more took the combined power of at ...

CyberheistNews Vol 11 #07 [HEADS UP] New Phishing Attack Uses Morse Code to Avoid Detection By Your Email Scanners

Feb 16, 2021 9:47:41 AM By Stu Sjouwerman

Phishing and Impersonated Brands

Feb 16, 2021 8:24:13 AM By Stu Sjouwerman

Microsoft is still the most impersonated brand for phishing campaigns, according to researchers at Vade Secure. The security firm spotted 30,621 unique Microsoft-related phishing URLs in ...

A Ransomware Victim Refuses to Pay

Feb 15, 2021 8:23:05 AM By Stu Sjouwerman

Video game studio CD Projekt Red, makers of The Witcher series and Cyberpunk 2077, have disclosed a ransomware attack, WIRED reports. The attackers claimed to have stolen source code for ...

New Novel Campaign Targeting Security Researchers Uses Really Creative Social Engineering to Fool Victims

Feb 12, 2021 4:32:29 PM By Stu Sjouwerman

Pretending to be security researchers themselves, this group of cybercriminals went to great lengths to make sure legitimate security researchers would fall for the attack.

New Phishing Scam Uses Fake PPP Loans to Trick Victims into Giving Up Personal Information

Feb 12, 2021 4:32:25 PM By Stu Sjouwerman

Taking advantage of people’s need for financial assistance, these scammers pose as a bank offering “forgivable business loans to individuals impacted by the pandemic.”

Dutch Intelligence Agencies Warn About Chinese and Russian Cyber Espionage

Feb 12, 2021 1:39:00 PM By Stu Sjouwerman

Chinese and Russian state hackers threaten the Dutch economy. Three Dutch intelligence agencies jointly sound the alarm about digital espionage in financial newspaper Het Financieele ...

[Heads Up] Growing Collaboration Among Criminal Groups Heightens Ransomware Triple Threat

Feb 12, 2021 10:44:35 AM By Stu Sjouwerman

Increased communication and collaboration among cybercrime groups is heightening the ransomware threat for the healthcare sector, according to the Cyber Threat Intelligence League (CTI ...

[Scary?] AI Can Now Learn To Manipulate Human Behavior

Feb 12, 2021 10:28:21 AM By Stu Sjouwerman

The Conversation just published something I have been worried about for a while now. Scary? Could be getting that way sometime soon. They said: "Artificial intelligence (AI) is learning ...

Phishing for Love

Feb 12, 2021 10:02:15 AM By Stu Sjouwerman

Valentine’s Day-themed phishing campaigns are spiking, researchers at Check Point warn. There was a 29% increase in Valentine’s Day-related phishing domains last month, compared to a 6% ...

[New E-Book] Comprehensive Anti-Phishing Guide

Feb 12, 2021 8:45:42 AM By Stu Sjouwerman

Spear phishing emails remain a top attack vector for the bad guys, yet most companies still don’t have an effective strategy to stop them.

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