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

EA Got Social Engineered via Slack Channel and Lost 780 GB valued Millions

Jun 15, 2021 8:48:34 AM By Stu Sjouwerman

Hackers gained access to the networks of video game giant Electronic Arts (EA) via social engineering, Motherboard reports. The hackers claim to have stolen 780 GB of data, including the ...

New “Ransomware Update” Phishing Attack Seeks to Enjoy the Same Successes as the Recent Pipeline Attack

Jun 14, 2021 4:21:43 PM By Stu Sjouwerman

When your users receive a realistic-looking helpdesk email informing them they should update their system to prevent ransomware attacks, what could possibly go wrong?

Fax/Scan Phishing Attacks Jump Nearly 500% as Workers Return to the Office

Jun 14, 2021 4:21:40 PM By Stu Sjouwerman

The bad guys take advantage of any major event as the source of a new phishing campaign. According to new data from Avanan, this latest campaign aligns with heading back to the office.

KnowBe4 Earns 2021 Top Rated Award from TrustRadius

Jun 14, 2021 8:00:00 AM By Stu Sjouwerman

We are proud to announce that TrustRadius has recognized KnowBe4 with a 2021 Top Rated Award.

Insights Into Credential Phishing

Jun 9, 2021 10:36:37 AM By Stu Sjouwerman

Cybercriminals are quick to put hacked accounts to use, according to Agari by Help Systems. The researchers found that 91% of compromised accounts are accessed by attackers within one ...

FINRA Warns U.S. Brokerage Firms of New Phishing Campaign Threatening Penalties for Non-Compliance

Jun 9, 2021 10:09:40 AM By Stu Sjouwerman

In the latest phishing campaign targeting FINRA member firms, attackers impersonate requests from the regulatory authority citing the potential to “attract penalties” if request ...

Ransomware Tops IBMs List of Most Observed Attack Types with Sodinokibi Maintaining the Lead

Jun 9, 2021 10:09:33 AM By Stu Sjouwerman

In a new report from IBM Security, we get the opportunity to see exactly what kinds of attacks are succeeding, where are they happening, how they’re getting in, and what are the results.

78% of CISOs Say Attacks Have Increased as a Result of More Employees Working from Home

Jun 8, 2021 1:37:33 PM By Stu Sjouwerman

According to new data from VMware Carbon Black, the sophistication and impact of modern cyberattacks is causing CISOs to rethink how to secure the expanding attack surface.

Chinese Hacker Group Debuts After 3 Years of Testing with a Previously Unseen Backdoor Exploit

Jun 8, 2021 1:37:27 PM By Stu Sjouwerman

Dubbed ‘SharpPanda’, this Chinese APT group uses malicious Word docs, .RTF templates, and the RoyalRoad malware to install a powerful backdoor DLL giving them all kinds of access.

CyberheistNews Vol 11 #22 [Heads Up] New Email Attack Takes a Phishing-Turned-Vishing Angle To Steal Credit Card Info

Jun 8, 2021 10:01:14 AM By Stu Sjouwerman

Phishing Trends Show Adult Themes Have Skyrocketed 974%

Jun 7, 2021 8:48:15 AM By Stu Sjouwerman

Phishing lures with adult themes have spiked over the past year, according to researchers at GreatHorn. The researchers explain that these emails are effective at getting people to click, ...

KnowBe4 Fresh Content Updates from May: Including New Mobile-First Training Modules

Jun 4, 2021 8:47:27 AM By Stu Sjouwerman

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

Ransomware Attacks Run Rampant as Fujifilm Becomes the Next Victim

Jun 4, 2021 8:42:33 AM By Stu Sjouwerman

We just covered a recent story today that there was a ransomware attack on Steamship Authority. And like clockwork, another company becomes the next victim.

[REUTERS BREAKING NEWS] U.S. to give ransomware hacks similar priority as terrorism

Jun 3, 2021 3:43:22 PM By Stu Sjouwerman

June 3, 2021 - 3:30PM EDT -- The U.S. Department of Justice is elevating investigations of ransomware attacks to a similar priority as terrorism in the wake of the Colonial Pipeline hack ...

Ransomware's Impact Highlights the Threat of Social Engineering

Jun 3, 2021 2:10:23 PM By Stu Sjouwerman

Ransomware actors are continuing to shift their focus to disrupting operations that affect people’s daily lives, according to the Wall Street Journal. A ransomware attack on Wednesday ...

REvil Ransomware Behind Attack on the World’s Largest Meat Producer

Jun 3, 2021 2:07:07 PM By Stu Sjouwerman

As ransomware gangs continue to target large organizations, and in the wake of several high-profile companies, this latest news demonstrates how effective and impactful cybergangs are.

Fake Positive Reviews Mask Spoofed Browser Extensions

Jun 3, 2021 11:08:55 AM By Stu Sjouwerman

Malicious browser extensions often have fake positive reviews to garner trust from users, according to Brian Krebs. Krebs describes a phony Microsoft Authenticator extension in the Google ...

[On-Demand Webinar] Learn to Detect and Defend Against Supply Chain Attacks Before They Compromise Your Network

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

Your job is to safeguard your organization and its assets from bad actors trying to infiltrate your network. But what do you do when the threat is coming from what looks like a trusted ...

Use of TLS to Obfuscate Malicious C2 Communications Doubles in the Last Year

Jun 2, 2021 4:57:30 PM By Stu Sjouwerman

With 98% of all web traffic going over HTTPS, the malicious use of TLS (transport layer security) helps the cybercriminal conceal their activity specifics while also potentially doing so ...

Two-Thirds of Organizations Plan to Improve Their Cybersecurity in the Wake of Devastating Ransomware Attacks

Jun 2, 2021 4:53:53 PM By Stu Sjouwerman

With 81% of organizations believing ransomware attacks will become more prevalent in the second half of 2021, nearly everyone is preparing for the worst to come.

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