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

Massive Increases in Trojans and Backdoor Attacks More Than Double, Spelling Trouble for Organizations

Feb 11, 2019 2:24:32 PM By Stu Sjouwerman

Growth in attacks designed to obfuscate access and purpose should put organizations on alert as cybercriminals gain control over endpoints to do just about anything they want.

One-Third of Organizations Aren’t Ready to Combat Cybersecurity Attacks, Despite Increases in Security Spend

Feb 11, 2019 2:21:56 PM By Stu Sjouwerman

The latest data from eSecurityPlanet highlights that organizations have a lot of work to do to ensure they are secure in the face of a shortage of cybersecurity professionals.

New Phishing Attack Uses Google Translate to Spoof Login Page and Fool Victims

Feb 11, 2019 2:18:25 PM By Stu Sjouwerman

A clever use of Google Translate fools victims into believing spoofed authentication requests are being handled by Google itself.

Data Breaches Result in Lost Customer Confidence Costing Organizations More than Just Fines

Feb 11, 2019 2:16:18 PM By Stu Sjouwerman

Consumers have spoken: According to new data, the majority of your organization’s customers won’t do business with you after a data breach and expect you to pay to protect their personal ...

[On-demand Webinar] Get an Insider View Into the Methods and Exploits of the World's Most Famous Hacker, Kevin Mitnick

Feb 11, 2019 2:16:07 PM By Stu Sjouwerman

Many of the world's most reputable organizations rely on Kevin Mitnick, the world's most famous hacker and KnowBe4's Chief Hacking Officer, to uncover their most dangerous security flaws. ...

Phishers Target Anti-Money Laundering Officers at U.S. Credit Unions

Feb 8, 2019 9:58:24 AM By Stu Sjouwerman

Scammers Still Exploit Hijacked GoDaddy Domains

Feb 7, 2019 7:18:05 AM By Stu Sjouwerman

Criminals are still using hijacked GoDaddy domains to launch large-scale spam campaigns, despite GoDaddy taking steps last month to address the authentication flaw exploited by the ...

A Majority of Cyberattacks Use Lateral Movement and “Living Off the Land”

Feb 7, 2019 7:08:34 AM By Stu Sjouwerman

The latest from Carbon Black’s 2019 Global Threat Report shows cybercriminals are intent to move from endpoint to endpoint and avoid detection using built-in tools.

A Hacker’s Dream: Half of IT Admins Reuse Passwords Across Multiple Accounts

Feb 7, 2019 7:04:26 AM By Stu Sjouwerman

The most recent report from Ponemon shows how IT’s lack of password management is wildly misaligned with the organizations supposed concern for protecting data.

Social Engineering Comes to Wikipedia

Feb 6, 2019 6:55:23 AM By Stu Sjouwerman

Attackers are selectively editing Wikipedia articles to lend credibility to tech support scams, according to Rob VandenBrink at the SANS Internet Storm Center. The Wikipedia page for the ...

New Report Outlines “Bashe” Ransomware Global Infection Scenario Outcomes, including up to $193 Billion in Damages

Feb 6, 2019 6:47:13 AM By Stu Sjouwerman

With the potential for a single coordinated cyberattack aimed at holding the world hostage and putting losses on a global scale, a new report models what it would look like.

Organizations Routinely Phish Their Own Employees to Test Their Systems for Human Vulnerability

Feb 6, 2019 6:38:19 AM By Stu Sjouwerman

As compliance mandates and consumer privacy laws get tougher, businesses are taking matters into their own hands, launching internal phishing attacks to identify at-risk users.

Here is the Phish-prone percentage that a customer sent us today

Feb 5, 2019 1:54:08 PM By Stu Sjouwerman

"We’ve had great success with the KnowBe4 solution. I think the key differentiator for KnowBe4 is the integration of the simulated phishing and analytics in conjunction with the ...

Today I was attacked through an existing vendor using a real email thread

Feb 5, 2019 10:39:55 AM By Stu Sjouwerman

We have been dealing with a vendor of ours for on-hold messages for many years. I send them a Word file with the hold messages, their studio records them, and they send us a wave file ...

CyberheistNews Vol 9 #5 [Brilliant New Social Engineering Phish] "Please DocuSign: Funding for Your Business"

Feb 5, 2019 9:42:07 AM By Stu Sjouwerman

Sextortion Phishing Scam Exploits Recent Breach Fears

Feb 5, 2019 7:23:09 AM By Stu Sjouwerman

Sextortion scam emails are circulating which claim that a popular adult site has been hacked, allowing an attacker to record videos of users through their webcams, according to Lawrence ...

Voicemail Phishing Email Scams are Targeting User Passwords

Feb 5, 2019 7:15:09 AM By Stu Sjouwerman

A devilishly ingenious scam plays on your user’s familiarity with business voicemail, seeking to compromise online credentials without raising concerns.

Ransomware Attacks Cost Organizations an Average of $55K in Q4 2018

Feb 5, 2019 7:06:48 AM By Stu Sjouwerman

The latest report from ransomware response vendor Coveware shows a shift towards larger organizations, bigger ransoms, and a focus on disabling recovery.

This password-stealing phishing attack comes disguised as a fake meeting request from the boss

Feb 4, 2019 5:00:06 PM By Stu Sjouwerman

Danny Palmer at ZDNet reported: "A widespread phishing campaign is targeting executives across a number of industries with messages asking to reschedule a board meeting in an effort to ...

KnowBe4 Fresh Content & Feature Updates - January 2019

Feb 4, 2019 1:59:09 PM By Stu Sjouwerman

Here's a few important updates to share with you for the month of January!

Security Awareness Training Blog

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