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

75% of Users Don’t Know Cyber Security Best Practices

Oct 18, 2018 11:20:22 AM By Stu Sjouwerman

New data from MediaPRO’s third annual State of Privacy and Security Awareness Report shows users are less prepared this year to address the risk of cyberthreat.

It Only Takes One Phish: 37K Records and a Month of Access

Oct 18, 2018 9:57:12 AM By Stu Sjouwerman

The attack on California-based Gold Coast Health Plan went undetected, allowing attackers access to healthcare data serving as fuel for fraud.

CyberheistNews Vol 8 #41 [Heads-Up] Add Wi-Fi Proximity to Your Cyber Attack Concern List

Oct 16, 2018 10:15:11 AM By Stu Sjouwerman

Three Out of Ten People Would Fall for Impersonation Scams

Oct 15, 2018 10:29:57 AM By Stu Sjouwerman

Phony police calls in the US have been telling people they need to pay a fine for missing jury duty. In the UK the scams take a different form: the bogus police are asking for the ...

UK publishers warn of global phishing scams targeting manuscripts

Oct 15, 2018 6:21:02 AM By Stu Sjouwerman

A succession of global phishing scams targeting publishers and agents has prompted responses from several global publishers, reports the Bookseller.

Clueless: 64% of Working Adults Don’t Know What Ransomware Is

Oct 11, 2018 4:48:40 PM By Stu Sjouwerman

Ransomware is one of the new scourges of the net and every IT pro is fighting to protect users from attacks. However, a new study shows that the majority of working adults don’t know what ...

A trio of wealthy Russians made an enemy of Russian President Vladimir Putin. Now they’re all dead.

Oct 11, 2018 4:33:41 PM By Stu Sjouwerman

The Wall Street Journal just came out with a rather chilling tale. "Nikolai Glushkov—found strangled to death with a dog leash in March—had been the last survivor of three men, once rich ...

On Facebook, Make Sure They Are Who They Say They Are Before You become Friends

Oct 11, 2018 1:54:22 PM By Stu Sjouwerman

You receive a message apparently from a Facebook friend telling you they received another friend request from you. They go on to diagnose the "situation," tell you that you’ve been ...

Your Users Need to be Smarter than the Scammers

Oct 11, 2018 1:08:15 PM By Stu Sjouwerman

Fraudsters have all but eliminated indicators used to detect fake identities on line, reports Socure, a predictive analytics provider. The difference between authentic and fake identities ...

Ransomware Attacks Are Not Slowing Down

Oct 11, 2018 12:14:04 PM By Stu Sjouwerman

Annual ransomware-induced costs are projected to exceed $11.5 billion by 2019, according to Veeam. Defined by the Department of Justice as “a new model of cybercrime with a potential to ...

Organizations Need to Prepare for the Aftermath of Phishing Attacks

Oct 11, 2018 12:06:01 PM By Stu Sjouwerman

Phishing campaigns are growing more sophisticated as industries become increasingly aware of the threat they pose. Some of these attacks are so clever and meticulously crafted that many ...

Add Wi-Fi Proximity to Your Cyberattack Concern List

Oct 10, 2018 2:18:35 PM By Stu Sjouwerman

The latest attack from the Russian GRU involves both traditional spear phishing and close access attacks in an attempt to thwart an investigation of the nerve agent attack in the UK.

CyberheistNews Vol 8 #40 [Heads-Up] Instant LinkedIn Hit: "Kevin Mitnick Demos the USB Ninja Cable Attack"

Oct 9, 2018 9:38:37 AM By Stu Sjouwerman

Users Sharing Passwords Put Organizations at Higher Risk

Oct 9, 2018 9:21:23 AM By Stu Sjouwerman

Cybercriminals thrive on misuse of credentials, and users sharing them only makes the criminal’s job easier. The latest report from LastPass shows password sharing is rampant.

Don’t Be Scammed Twice: Check Your Cyber Insurance!

Oct 8, 2018 4:28:47 PM By Stu Sjouwerman

You’re already worried about the possibility of becoming a victim of a cyber scam. Be sure you clearly understand what your cyber insurance coverage is, or you may feel like you got taken ...

Cyber Attacks Mean Double the Trouble in 2018

Oct 8, 2018 4:17:21 PM By Stu Sjouwerman

According to the 2018 Traveler’s Risk Index, the percentage of businesses that have been the victim of a cyberattack has doubled… and most businesses aren’t even remotely ready.

Vishing Scams are Increasingly Difficult to Detect

Oct 8, 2018 10:32:44 AM By Stu Sjouwerman

Phone scams are becoming more convincing as attackers devise new ways to sound legitimate. KrebsOnSecurity recently spoke with several readers who'd been targeted by voice phishing, or ...

KnowBe4 Introduces New Features: Virtual Risk Officer and Advanced Reporting

Oct 8, 2018 8:46:32 AM By Stu Sjouwerman

We are excited to announce the availability of two new features, Virtual Risk Officer and Advanced Reporting.

British Government: "The Russian GRU Is Responsible For BadRabbit Ransomware And Many Other Cyber Crimes"

Oct 8, 2018 7:13:38 AM By Stu Sjouwerman

October 4th, 2018. Announced by the UK National Cyber Security Centre (NCSC), the UK and its allies exposed a ransomware campaign by the GRU, the Russian military intelligence service, of ...

KnowBe4's Phish Alert Button Now Works With Outlook Mobile!

Oct 5, 2018 12:44:35 PM By Stu Sjouwerman

Do your users know what to do when they receive a suspicious email? Should they call the help desk, or forward it? Should they forward to IT including all headers? Delete and not report ...

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