Human Risk Management Blog

Keeping you informed. Keeping you aware.
Stay on top of the latest in security including social engineering, ransomware and phishing attacks.

Stu Sjouwerman

Founder and Executive Chairman

Stu Sjouwerman (pronounced “shower-man”) is the Founder and Executive Chairman 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.


Recent Posts

Cyberattacks Targeting Government Agencies and Institutions Increases in Q2 by 40%

New data shows a massive uptick in attacks across all industries, but a particularly worrisome growth in interest in targeting the public sector – and the indicators of who’s responsible ...

New “Early Warning” System in the U.K. Tips Off Ransomware Targets

British Intelligence has come up with a potentially very effective means to disrupt ransomware attacks, but there seems to still be a few kinks in the system.

New Adversary in the Middle Platform Circumvents MFA Protections “At Scale”

As Phishing as a Service (PhaaS) kits continue to evolve, news like recent attacks using the Greatness toolkit demonstrate how easy it is for novice attackers to access accounts despite ...

You Asked and Here It Is! KnowBe4's New Content Manager Feature is Unveiled

We heard you, and we're thrilled to tell you about the all-new Content Manager feature for KMSAT!

Labor Day Alert: Mobile Phishing Attacks on the Rise for Remote Employees

A recent survey by Lookout, Inc. warns for a specific attack vector as Labor Day approaches. The study shows that 85% of enterprise employees capable of remote work plan to do so on ...

[Live Demo] Ridiculously Easy Security Awareness Training and Phishing

Old-school awareness training does not hack it anymore. Your email filters have an average 7-10% failure rate; you need a strong human firewall as your last line of defense.

Customers of Cryptocurrency FTX are Target of  Phishing Emails

Customers of the bankrupt cryptocurrency exchange FTX are already receiving phishing emails following a breach of personal data held by several crypto companies, CoinDesk reports.

Open Redirect Flaws: The Newest Phishing Trick

No surprise: phishing attacks are on the rise, and an old technique is now--again--getting increasingly popular: open redirect flaws. These flaws allow attackers to redirect victims to ...

Asking Claude AI For a Little Encryption Help... :-(

A friend sent me this:

Quishing: QR Codes as Phishbait

Researchers at Trustwave are tracking an increase in the use of QR codes to spread phishing links.

Case Study: LoanLogics Combined Compliance & Security Awareness Training to Improve Security Culture

In the drive to build a strong security culture, security awareness and compliance training should work hand in hand.

Top 10 Trends in Business Email Compromise for 2023

Researchers at Trustwave have published a report outlining trends in business email compromise (BEC) attacks, finding that these attacks spiked in February of 2023.

Use KnowBe4’s New Callback Phishing Feature to Boost Your Organization's Security Awareness

What's the Deal with Callback Phishing?

Your KnowBe4 Fresh Content Updates from August 2023

Check out the 21 new pieces of training content added in August, alongside the always fresh content update highlights, events and new features.

Duolingo Users Should Be on the Lookout for Targeted Phishing Attacks

Users of the language learning app Duolingo should be wary of targeted phishing attacks following a recent data leak, according to Anthony Spadafora at Tom’s Guide. Criminals scraped the ...

Data Breaches Involving Social Engineering Attacks Take Longer to Identify and Contain

Continuing coverage of IBM’s recently-released Cost of a Data Breach report, we focus on the impact attacks involving social engineering have on data breach costs.

Ransomware Attacks Rise 69% and 1500 Organizations Feel the Hurt

A new report from Rapid7 has found that the number of ransomware attacks increased by 69% in the first half of 2023. Rapid7 incident response data found that at least 1500 organizations ...

LinkedIn Deception: How a Chinese Spy Tricked Thousands of UK Officials

In last few years, cyber espionage has taken a new form. A recent investigation by The Times has unveiled a Chinese intelligence officer's extensive use of LinkedIn to target UK ...

Phishing Tops the List as the Most Costly Initial Attack Vector in Data Breaches

After you come to grips with the massive average cost of a data breach to an enterprise organization measured in the millions, it’s time to look at the factors that increase – and lower – ...


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