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

KnowBe4 Welcomes Employee No. 400

Jan 29, 2018 5:52:00 PM By Stu Sjouwerman

Something positive for a change. This morning we welcomed employee No. 400 at the staff meeting, and for good measure we also asked employee No. 100, 200, and 300 to come on stage too!

UK Warns Critical Industries to Boost Cyber Security or Face Hefty Fines

Jan 29, 2018 5:42:18 PM By Stu Sjouwerman

The UK government has warned that Britain's most critical industries must boost their cybersecurity or face potentially hefty fines under the EU's Networks and Information Systems ...

CyberheistNews Vol 8 #5 Scam Of The Week: "Hey Did You See That Fake AI Porn Movie Of Yourself?"

Jan 29, 2018 9:46:25 AM By Stu Sjouwerman

IT Security in the enterprise: Things are looking up!

Jan 28, 2018 9:33:22 AM By Stu Sjouwerman

Cybersecurity is quickly becoming the number one business priority, says identity and access management company Okta. Based on the results of an analysis of authentication and ...

[PHISHING ALERT] "Hey Did You See That Fake AI Porn Movie Of Yourself?"

Jan 27, 2018 10:58:45 AM By Stu Sjouwerman

Heads-up. I am sorry to have to bring up a very distasteful topic, but in the very near future your users will get phishing emails with something close to the ultimate click-bait, luring ...

CyberheistNews Vol 8 #4 New Study: Is Your Phish-Prone Percentage Better or Worse Than Your Peers in the Industry?

Jan 23, 2018 10:16:36 AM By Stu Sjouwerman

Look out for More SMiShing This Year

Jan 22, 2018 3:07:04 PM By Stu Sjouwerman

Our friends at Social-Engineer wrote a great post that we are cross-posting here, because we see the same problem happening more and more! "With the new year come new social engineering ...

Scam Of The Week: The Most Sophisticated Netflix Phishing Yet

Jan 20, 2018 10:31:16 AM By Stu Sjouwerman

This Netflix phishing campaign goes after your login, credit card, mugshot and ID! Paul Ducklin at Sophos wrote: "Think of the big security stories of recent months. Security holes like ...

KnowBe4 2017 Top Clicked Phishing Test Analysis

Jan 19, 2018 6:29:39 PM By Stu Sjouwerman

Click on the Picture to download the full infographic in PDF format Looking at the whole of 2017, there were some interesting shifts on what phishing emails were clicked from quarter to ...

Forget Viruses or Ransomware—Is Your Biggest Cyberthreat Greedy Cryptocurrency Miners?

Jan 19, 2018 5:53:48 PM By Stu Sjouwerman

This week, cybersecurity firm Check Point published its regular Global Threat Index. Malware that hijacks workstations to mine cryptocoins has apparently become the most popular infection ...

Business Email Compromise Phishing Attacks Will Exceed $9 Billion This Year

Jan 19, 2018 1:19:51 PM By Stu Sjouwerman

Trend Micro reported that Business Email Compromise (BEC) is projected to skyrocket as attackers use more and more sophisticated social engineering tactics to trick their targets. The ...

Why Cybercrime Ditches Bitcoin Ransomware Payments And Where They Are Going Next

Jan 19, 2018 12:43:39 PM By Stu Sjouwerman

The popularity of bitcoin is creating problems for ransomware criminals wanting to get paid in the skyrocketing cryptocurrency. "We'll see a progressive shift in 2018 towards criminal use ...

Three-Quarters of Businesses Saw Phishing Attacks in 2017

Jan 18, 2018 7:09:45 AM By Stu Sjouwerman

Tara Seals at InfoSecurity Magazine had a good summary of Wombat Security Technologies' annual State of the Phish research report. "The war against phishing is still on, with 76% of ...

KnowBe4 is proud to announce the introduction of a new feature, Reporting APIs

Jan 17, 2018 7:31:09 PM By Stu Sjouwerman

KnowBe4 is proud to announce the introduction of a new feature, Reporting APIs. Reporting APIs enable you to customize and obtain reports by integrating with other business systems that ...

KnowBe4 Makes Third Place In Nationwide SMB Top Five Best Place To Work in Technology

Jan 17, 2018 7:16:30 PM By Stu Sjouwerman

Great Place to Work is a San Francisco-based global leader on high-trust, high-performance workplace cultures. Through their certification programs, Great Place to Work recognizes ...

Healthcare Ransomware Attacks – Don’t Be Part of the Statistics

Jan 17, 2018 2:58:43 PM By Stu Sjouwerman

Rebecca Wynn at securitycurrent.com wrote a great article on how not to become a ransomware statistic in health care: "In 2017, six of the top ten HIPAA breaches reported to the U.S. ...

Google’s Confusing Gmail Security Alert Looks Exactly Like a Phishing Attempt

Jan 17, 2018 10:26:52 AM By Stu Sjouwerman

Note: I got this too and had a similar reaction last week. Security researchers say the legitimate email is training people to have bad email hygiene. Richard De Vere, a security ...

Hospital Pays $55K Ransomware Demand DESPITE Having Backups

Jan 16, 2018 1:29:10 PM By Stu Sjouwerman

An Indiana hospital paid a ransom of $55,000 to get rid of ransomware that had infected its systems and was hindering operations last week. The infection took root last week, on Thursday, ...

Spend One Minute And Look At These Phishing Graphs

Jan 16, 2018 10:30:00 AM By Stu Sjouwerman

In the first quarter of 2018, after 7 years of helping our customers to enable their employees to make smarter security decisions and having reached the milestone of 15,000 customers, we ...

KillDisk Fake Ransomware Hits Financial Firms in Latin America

Jan 16, 2018 7:13:23 AM By Stu Sjouwerman

A new version of the KillDisk disk-wiping malware has hit companies in the financial sector in Latin America, Trend Micro reported yesterday. Just like previous versions, KillDisk ...

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