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

We're Still Not Ready for GDPR? What is Wrong With Us?

Nov 19, 2017 10:30:08 AM By Stu Sjouwerman

Sara Peters, Senior Editor at Darkreading wrote an excellent article about GDPR. It is both reprimanding and encouraging to get off our collective butts and do something about GDPR very ...

‘Grey’s Anatomy’ Fall Finale Cliffhanger: Hospital Shut Down By Ransomware Attack

Nov 19, 2017 8:24:01 AM By Stu Sjouwerman

Ransomware goes prime time: TV Show Grey's Anatomy characters Bailey and Arizona are unable to access medical records on the computer and an I.T. specialist named Tim notes that cardiac ...

The future of cyberwar: Weaponised ransomware, IoT attacks and a new arms race

Nov 18, 2017 11:03:15 AM By Stu Sjouwerman

Steve Ranger at TechRepublic did a good job summarizing the direction of future threats we are going to have to deal with. "After at least a dozen years in the shadows, cyberwarfare is ...

Ransomware recovery methods: What does the NIST suggest?

Nov 18, 2017 8:37:09 AM By Stu Sjouwerman

Knowing what ransomware recovery methods are available is important as the threat continues to grow. Expert Judith Myerson at TechTarget outlines what the NIST recommends for enterprises. ...

Antivirus Software Doing The Complete Opposite And Spreading Malware

Nov 17, 2017 2:01:47 PM By Stu Sjouwerman

Nicknamed AVGater by Austria-based security consultant Florian Bogner, he discovered an exploit within Antivirus software that takes advantage of the “restore from quarantine” function ...

Skeleton in the closet: 17-year old MS office flaw allows malware install when user opens file

Nov 15, 2017 11:18:35 AM By Stu Sjouwerman

Here is a new pain in the neck! Fix this one ASAP. While the world is still dealing with the threat of 'unpatched' Microsoft Office's built-in DDE feature, researchers have uncovered a ...

[On-Demand Webinar] Six Cybersecurity Trends Organizations Need to Watch for in 2018

Nov 14, 2017 8:54:25 AM By Stu Sjouwerman

Watch this insider’s perspective of cybersecurity trends to expect in 2018 from our founder Stu Sjouwerman. The list of six predictions are founded on KnowBe4’s deep insight into threats ...

Watch Out For Black Newsjacking: FOSCAM camera poisoned search results

Nov 14, 2017 6:42:56 AM By Stu Sjouwerman

Security researchers frequently report on vulnerable IoT devices. Cisco's Talos group just reported that Foscam video cams have a security risk. We did a Google search on Foscam Indoor ...

Scam of the Week: "Cyber Monday Is Scammer Heaven"

Nov 13, 2017 5:18:21 PM By Stu Sjouwerman

The majority of consumers aware of online phishing scams, but still may fall victim this cyber Monday... So here is your Scam Of The Week! DomainTools, a leader in domain name and ...

CyberheistNews Vol 7 #45 [ALERT] This Scary New Phishing Attack Is Very Hard to Detect

Nov 13, 2017 10:28:20 AM By Stu Sjouwerman

[VIDEO] New Smart Groups Put Your Phishing, Training And Reporting On Autopilot.

Nov 11, 2017 9:29:21 AM By Stu Sjouwerman

Automate the path your employees take to smarter security decisions. With the powerful new Smart Groups feature, you can use each employees’ behavior and user attributes to tailor ...

[ALERT] This Scary New Phishing Attack Is Very Hard To Detect

Nov 11, 2017 7:57:49 AM By Stu Sjouwerman

You need to know about a new phishing attack vector reported by our friends at Barkly. It utilizes a new technique that's just plain nasty. This week, users at one of their customers ...

Google: Our hunt for hackers reveals phishing is far deadlier than data breaches

Nov 10, 2017 11:47:25 AM By Stu Sjouwerman

The study finds that victims of phishing are 400 times more likely to have their account hijacked than a random Google user, a figure that falls to 10 times for victims of a data breach. ...

Spy Vs. Spy? WikiLeaks Says CIA Impersonated Kaspersky Lab

Nov 9, 2017 5:15:23 PM By Stu Sjouwerman

Wow, the plot thickens. Attribution indeed is a very murky business. According to WikiLeaks, its analysis revealed that by using these fake certificates, the CIA made it look like data ...

Ordinypt Ransomware Intentionally Destroys Files, Currently Targeting Germany

Nov 9, 2017 3:46:59 PM By Stu Sjouwerman

A new ransomware strain called Ordinypt is currently targeting victims in Germany, but instead of encrypting users' documents, the ransomware rewrites files with random data. Discovered ...

NATO to Increase Cyber Weaponry to Combat Russia

Nov 9, 2017 11:43:40 AM By Stu Sjouwerman

NATO members agreed Wednesday to increase the use of cyber weaponry and tactics during military operations, with the alliance also upgrading other capabilities to combat a resurgent ...

[On-Demand Webinar] Phishing and Social Engineering in 2018

Nov 9, 2017 10:37:48 AM By Stu Sjouwerman

Ransomware has tipped the 1 billion mark and damages are expected to be around 5 billion before the year is out. Use of ransomware has evolved throughout the year with a 600% rise in URL ...

KnowBe4 Ranked Number 70 Fastest Growing Company in North America on Deloitte’s 2017 Technology Fast 500™

Nov 9, 2017 9:44:51 AM By Stu Sjouwerman

KnowBe4 today got word that we ranked No. 70 on Deloitte’s Technology Fast 500™, a ranking of the 500 fastest growing technology, media, telecommunications, life sciences and energy tech ...

Scam Of The Week: Massive Netflix Phishing Campaign

Nov 7, 2017 10:58:58 AM By Stu Sjouwerman

There is a massive scam campaign going on, this time a very well executed Netflix phishing attack. The scam targets subscribers telling them that their account is about to be canceled. ...

Bad Rabbit Ransomware Attack Was Hiding A Spear Phishing Campaign

Nov 6, 2017 10:00:00 AM By Stu Sjouwerman

During the attacks in eastern Europe with the Bad Rabbit ransomware, a more insidious attack was taking place in Ukraine under its cover, Reuters reported. Serhiy Demedyuk, head of the ...

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