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

CyberheistNews Vol 12 #14 [EYE OPENER] A Lack of Employee Cyber Hygiene is the Next Big Threat

Apr 5, 2022 8:48:00 AM By Stu Sjouwerman

[EYE OPENER] A Lack of Employee Cyber Hygiene is the Next Big Threat Email not displaying? | View Knowbe4 Blog CyberheistNews Vol 12 #14 | Apr. 5th., 2022 [EYE OPENER] A Lack of Employee ...

Social Engineering by "Emergency Data Request"

Apr 4, 2022 8:50:33 AM By Stu Sjouwerman

Bloomberg has reported that forged "Emergency Data Requests" last year induced Apple and Meta to surrender "basic subscriber details, such as a customer’s address, phone number and IP ...

Your KnowBe4 Fresh Content Updates from March 2022

Apr 1, 2022 8:00:00 AM By Stu Sjouwerman

Check out the 74 new pieces of training content added in March, alongside the always fresh content update highlights and new features.

Simple Facebook Phishing Scam Takes an Unexpected Turn to Throw Potential Victims Off the Scent

Mar 31, 2022 1:04:37 PM By Stu Sjouwerman

Rather than take the usual path of sending an email and linking to a spoofed logon page, this attack takes a different set of actions that at first make no sense but may actually be ...

Cisco: Web 3.0 Will be the Next Frontier for Social Engineering and Phishing Attacks

Mar 31, 2022 11:52:59 AM By Stu Sjouwerman

A look at what makes up Web 3.0 and how it may be used includes insight into what kinds of cyberattacks may plague it, as cybercriminals look for new profitable opportunities.

Cost of Internet Crimes in 2021 Increase 64% Exceeding $6.9 Billion

Mar 31, 2022 11:52:17 AM By Stu Sjouwerman

New data from the FBI’s Internet Crime Complaint Center (IC3) shows a massive increase in the cost of internet crimes, with phishing and BEC topping the list.

Obvious Phishbait, But Someone Will Bite

Mar 31, 2022 10:13:29 AM By Stu Sjouwerman

A widespread phishing scam is circulating in Facebook Messenger, according to Jeff Parsons at Metro. The phishing messages simply contain the words, “Look what I found,” along with a ...

FBI Warns of Phishing Attacks Targeting Election Officials

Mar 31, 2022 8:57:59 AM By Stu Sjouwerman

The FBI has issued a Private Industry Notification warning of phishing emails designed to steal login credentials from election officials. The Bureau believes these attacks will increase ...

A Lack of Employee Cyber Hygiene is the Next Big Threat

Mar 30, 2022 8:16:33 AM By Stu Sjouwerman

A new report suggests that everything from endpoints, to passwords, to training, to security policies, to a lack of awareness is all contributing to much higher risk of cyberattack.

Ransomware Attack Volume Increases by 18% As the Number of Variants Jumps to 34 in Only One Quarter

Mar 30, 2022 8:16:02 AM By Stu Sjouwerman

A new report reviewing ransomware activity in 2021 shows an impressive uptick in the number of targeted attacks in Q4 of 2021 to 772 as more players join (or rejoin) the game.

Mobile Device Usage Have Led to Security Incidents in Nearly Half of Organizations

Mar 30, 2022 8:15:33 AM By Stu Sjouwerman

The shift in devices used by today’s workforce has resulted in increases in cybersecurity concerns and incidents, despite a majority of orgs with defined BYOD programs in place.

CyberheistNews Vol 12 #13 [Heads Up] Published Zelenskyy Deepfake Video Demonstrates the Modern War is Online

Mar 29, 2022 9:59:07 AM By Stu Sjouwerman

[Heads Up] Published Zelenskyy Deepfake Video Demonstrates the Modern War is Online Email not displaying? | View Knowbe4 Blog CyberheistNews Vol 12 #13 | Mar. 29th., 2022 [Heads Up] ...

Email Conversation Hacking to Distribute Malware

Mar 29, 2022 9:03:08 AM By Stu Sjouwerman

Researchers at Intezer warn that attackers are hijacking email conversations to distribute the IcedID banking Trojan. This technique makes the phishing emails appear more legitimate and ...

KnowBe4 and Okta Update

Mar 28, 2022 3:53:58 PM By Stu Sjouwerman

To start off, we do not use Okta in any of our products.

Buy Now, Pay Later Scams

Mar 28, 2022 9:31:28 AM By Stu Sjouwerman

Fraudsters are taking advantage of the buy-now, pay-later (BNPL) payment model, according to Jim Ducharme, COO of Outseer. On the CyberWire’s Hacking Humans podcast, Ducharme explained ...

WIRED: "A Mysterious Satellite Hack Has Victims Far Beyond Ukraine"

Mar 24, 2022 3:20:26 PM By Stu Sjouwerman

WIRED wrote: "More than 22,000 miles above Earth, the KA-SAT is locked in orbit. Traveling at 7,000 miles per hour, in sync with the planet’s rotation, the satellite beams high-speed ...

Fidelity: "Why cybersecurity is material to all industries"

Mar 24, 2022 3:05:50 PM By Stu Sjouwerman

Fidelity just published an article titled "Cybersecurity: A growing risk". They note that the threat of Russian cyberattacks highlights vulnerabilities across industries. I'm quoting a ...

Repertoire of Ukraine Charity Phishing Scams

Mar 24, 2022 10:21:32 AM By Stu Sjouwerman

Scammers continue to exploit the crisis in Ukraine, according to researchers at Bitdefender. Over the past week, the researchers believe the fraudsters have adjusted their tactics in ...

Initial Access Broker Group Relies on Social Engineering

Mar 24, 2022 10:20:53 AM By Stu Sjouwerman

Google’s Threat Analysis Group (TAG) describes a cybercriminal group it calls “EXOTIC LILY” that acts as an initial access broker for numerous financially motivated threat actors, ...

Number of Phishing Attacks Hits an All-Time High in 2021, Tripling That of Early 2020

Mar 23, 2022 2:00:34 PM By Stu Sjouwerman

New data from the Anti-Phishing Working Group shows cybercriminals are stepping on the gas, focusing phishing attacks on credential theft and response-based scams.

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