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

[HEADS UP] NHS Issues Warning as UK COVID-19 Vaccine Scams Are Still Running Rampant

Feb 11, 2021 11:08:05 AM By Stu Sjouwerman

The National Health Service (NHS) in the UK recently sent a warning that cybercriminals are using social engineering tactics to target people wanting a COVID-19 vaccine email that is ...

US Gmail Users Are Preferred Phishing Targets

Feb 11, 2021 8:26:01 AM By Stu Sjouwerman

Google has found that most phishing attacks (42%) target Gmail users in the US. Users in the UK were the second most targeted, with 10% of attacks. Japan came in third with 5% of phishing ...

New Phishing Attack Uses Morse Code to Avoid Detection by Email Scanners

Feb 10, 2021 2:46:52 PM By Stu Sjouwerman

Yes – you read that right: Cybercriminals have found a way to use 1830’s technology to trick 2020s security solutions into not identifying phishing attachments as malicious.

New Phishing Attack Uses Google Firebase to Trick Microsoft and Achieve a Spam Confidence Level of Just 1

Feb 10, 2021 2:46:41 PM By Stu Sjouwerman

This new phishing scam takes advantage of inherent trust in credible domains to get past the scrutiny of even Microsoft to trick Office 365 users into giving up their online credentials.

Cannabis Company Loses Millions in BEC Scam

Feb 10, 2021 8:32:27 AM By Stu Sjouwerman

Australian medicinal cannabis company Cann Group has lost $3.6 million in a business email compromise (BEC) attack, Stockhead reports. The company had thought it was paying an unnamed ...

CyberheistNews Vol 11 #06 [Heads Up] Email Phishing Is Now the Top Ransomware Attack Vector

Feb 9, 2021 9:37:35 AM By Stu Sjouwerman

[World Premiere] KnowBe4’s New Season 3 of Netflix-Style Security Awareness Video Series - ‘The Inside Man’

Feb 9, 2021 8:52:30 AM By Stu Sjouwerman

We’re excited to announce Season 3 of the award-winning KnowBe4 Original Series - ‘The Inside Man’. This network-quality video training series delivers an entertaining learning experience ...

There’s Still No Real Answer to the Ransomware Epidemic

Feb 8, 2021 4:03:01 PM By Stu Sjouwerman

With ransomware evolving at a rapid pace, ransoms increasing, and organizations still becoming victims, what’s the answer to stop ransomware once and for all?

Every Employee is Part of Your Security

Feb 8, 2021 8:27:42 AM By Stu Sjouwerman

Employees are an essential component of an organization’s security defenses, according to Nico Popp, Chief Product Officer at Forcepoint. On the CyberWire’s Hacking Humans podcast, Popp ...

Cold Reality Dawns: Covid-19 Is Likely Here to Stay But Your Employees Are Vulnerable

Feb 8, 2021 7:00:00 AM By Stu Sjouwerman

The Wall Street Journal just wrote: "As Covid-19 Vaccines Raise Hope, Cold Reality Dawns That Illness Is Likely Here to Stay. Ease of transmission, new strains, limits of vaccination ...

How the United States Lost to Hackers, And Why The New President Wants To Fix It With 10 Billion Dollars

Feb 8, 2021 7:00:00 AM By Stu Sjouwerman

Nicole Perlroth, the New York Times cybersecurity reporter, just came out with a very interesting perspective on our troubles with foreign adversaries, in part created by our own ...

SOC teams spend nearly a quarter of their day handling suspicious emails

Feb 4, 2021 4:51:06 PM By Stu Sjouwerman

Jeremy Fuchs at Avanan just blogged about a new report they released. It revealed some surprising results about the time SOC teams have to spend investigating suspicious emails reported ...

Hackers are Winning the Cyberwar, Largely Because They Target People

Feb 4, 2021 8:26:37 AM By Stu Sjouwerman

Researchers at HackNotice have found that the number of data breaches is increasing, while the number of breach notifications is declining, SecurityWeek reports. HackNotice analyzed ...

Using Legitimate Services to Bypass Phishing Protections

Feb 3, 2021 8:25:33 AM By Stu Sjouwerman

Researchers at Abnormal Security have identified two techniques that attackers are using to bypass email security filters. The first tactic takes advantage of the fact that Microsoft ...

[On-Demand Webinar] A Master Class on IT Security: Roger Grimes Teaches Ransomware Mitigation

Feb 3, 2021 8:00:00 AM By Stu Sjouwerman

Cyber-criminals have become thoughtful about ransomware attacks; taking time to maximize your organization’s potential damage and their payoff. Protecting your network from this growing ...

CyberheistNews Vol 11 #05 [Heads Up] CISA's New War on Ransomware Awareness Campaign

Feb 2, 2021 9:34:17 AM By Stu Sjouwerman

UK Research and Innovation Becomes Next Victim Hit with Ransomware

Feb 2, 2021 8:17:12 AM By Stu Sjouwerman

UK Research and Innovation (UKRI) has been hit by a ransomware attack that impacted two of its services, BleepingComputer reports. The UK government department said it’s still unsure if ...

[Heads Up] Email Phishing Is Now the Top Ransomware Attack Vector

Feb 1, 2021 3:02:53 PM By Stu Sjouwerman

New data shows that pushback from the ransomware victim “market” may be influencing just how much cybercriminals are asking for as ransom and are being paid.

Trickbot is Targeting the Legal Sector

Feb 1, 2021 8:24:13 AM By Stu Sjouwerman

Researchers at Menlo Security warn of an ongoing Trickbot campaign targeting the legal and insurance industries. Trickbot is a notorious remote access Trojan that was in the crosshairs of ...

KnowBe4 Fresh Content Updates from January: Including 'The Inside Man' Season 3 Official Trailer

Jan 29, 2021 8:00:00 AM By Stu Sjouwerman

Here are important fresh content updates and new features to share with you that happened in the month of January.

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