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

Munich Re: "3x growth estimated in cyber crime costs over the next 4 years"

As cyber attacks continue to grow in sophistication and frequency, cyber insurers are expecting their market to double in the next two years.

U.K. Advance Fee Scams Increase by Over 600% in Less Than Two Years

New data from the U.K.’s Office of National Statistics shows that this often overlooked scam has grown significantly in interest – likely because it pays off.

Number of Ransomware Victim Organizations Nearly Doubles in March

New data shows a resurgence in successful ransomware attacks with organizations in specific industries, countries and revenue bands being the target.

King Charles Coronation Results in a Surge in Themed Scam Sites

The once-in-a-lifetime royal occurrence sparked countless websites designed to steal personal information and credit card details, causing security experts to issue warnings.

Business Email Compromise and “Confidential” Mergers and Acquisitions

A newly identified criminal organization has been observed running a large number of business email compromise (BEC) scams. Since February 2021, Abnormal Security reports the gang has ...

KnowBe4 Earns 2023 Top Rated Award from TrustRadius

We are proud to announce that TrustRadius has recognized KnowBe4 with a 2023 Top Rated Award.

[Finger on the Trigger] How the FBI Nuked Russian FSB's Snake Data Theft Malware

The Five Eyes member nations' cybersecurity and intelligence agencies dismantled the infrastructure of the Snake cyber-espionage malware that was operated by Russia's Federal Security ...

Q1 2023 Top-Clicked Phishing Report [INFOGRAPHIC]

KnowBe4's latest reports on top-clicked phishing email subjects have been released for Q1 2023. We analyze 'in the wild' attacks reported via our Phish Alert Button, top subjects globally ...

More InterPlanetary File System Services Use Also Means Phishing Abuse by Cybercriminals

The InterPlanetary File System (IPFS), a distributed file-sharing system that represents an alternative to the more familiar location-based hypermedia server protocols (like HTTPS), is ...

Dallas Police Department is the Latest Victim of a Ransomware Attack

Unfortunately ransomware attacks have taken another victim. The City of Dallas recently confirmed that their police department suffered a ransomware attack. This attack shutdown essential ...

Blocking Social Engineering by Foreign Bad Actors: The Role of the New Foreign Malign Influence Center

The U.S. government created a new office to block disinformation. The new Foreign Malign Influence Center (FMIC) oversees efforts that span U.S. military, law enforcement, intelligence, ...

[Eye Opener] HTML Phishing Attacks Surge by 100% in 12 Months

The Cyberwire reported: "Barracuda released a study this morning indicating that HTML attacks have doubled since last year.

[On-Demand] A Master Class on IT Security: Roger Grimes Teaches You Phishing Mitigation

Phishing attacks have come a long way from the spray-and-pray emails of just a few decades ago. Now they’re more targeted, more cunning and more dangerous. And this enormous security gap ...

Show Your C-Suite the ROI of Security Awareness Training with KnowBe4 Executive Reports

Do you spend too much time creating custom security awareness reports for your C-suite or board of directors? If so, we’re happy to share our new KMSAT feature, Executive Reports.

CNBC: Why Nearly 80% of Leaders are Increasing Cybersecurity Spend

According to a recent EY survey, nearly 80% of business leaders are increasing their cybersecurity investment in the next six to 12 months.

Response-Based Business Email Compromise Contributes to 97% of Attacks

The malwareless and seemingly benign nature of business email compromise emails, mixed with impersonation techniques, are difficult to spot as being malicious, making them even more ...

Global Cyber Attacks Continue to Rise as Q1 Sees a 7% Increase

New data highlights just how frequently cyber attacks are attempted and organizations are impacted - and the numbers are far more surprising than you’d think.

Ransomware Attacks Surge 91% in a Single Month to Reach an All-Time High

March saw a huge jump in ransomware compared to January and February, signifying that organizations should expect to see a lot more of these attacks this year.

Walmart Jumps to Top of the List of the Worlds Most Impersonated Brands Used in Phishing Attacks

Walmart’s rise to become the brand most likely to be impersonated in Q1 of this year is a real problem.

Malware Downloads Facilitated by Social Engineering

The most common route for malware infections remains social engineering in its various forms: phishing, vishing, etc. Such approaches take advantage of users’ deliberately cultivated ...


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