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

Fake Court Order Used to Take Over Domains

Motherboard reports that a scammer used a phony court order to trick a domain registrar into giving them control over a domain that posted links to dark web drug markets. The scammer then ...

[On-Demand Webinar] 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 ...

Student’s Attempt to Pirate Software Leads to Ryuk Ransomware Attack

Bleeping Computer recently reported that a student attempted to pirate expensive data visualization software, which resulted in a Ryuk ransomware attack.

KnowBe4 Fresh Content Updates from April: Including New AI-Driven Phishing Feature

Here are important fresh content updates and new features to share with you that happened in the month of April.

[NEW FEATURE] AI-Driven Phishing Helps Admins Deliver a Personalized Simulated Phishing Experience to Each User

We are excited to announce the availability of KnowBe4’s new AI-Driven Phishing feature. The KnowBe4 phishing platform now leverages machine learning to recommend and deliver informed and ...

Strange Chinese APT Interest in Buying Batches of AV Products

The Chinese military unit was recently accused of carrying out a years-long cyber espionage. The accusation from Japanese authorities was due to China's People Liberation Army buying ...

New IceID Phishing Attack Targets Website Owners Using Image Copyright Infringement as The Hook

Spotted by the Microsoft 365 Defender Threat Intelligence Team, this new phishing attack threatens legal action to trick victims into installing information-stealing malware.

W-2 Form Office 365 Credential Scam Creatively Uses Typeform Service to Bypass Security Checks

By creating phishing site pages using an online service for building surveys and forms, scammers figured out an original way to trick users out of their Office 365 credentials.

Cybersecurity Spend Is Now More Than 20% of the Average IT Budget As 91% of Organizations Suffering an Attack had Operations Impacted

The latest data from the Hiscox Cyber Readiness Report highlights how organizations are experiencing cyber threats and how they are responding to increase their readiness for next time.

[HEADS UP] New Malware Families Found in Phishing Campaign

Researchers from FireEye's security team found new malware families in a financial phishing campaign. The Malware strains are dubbed Doubledrag, Doubledrop, and Doubleback and have been ...

Genesis Market: a Study in the C2C Economy

Researchers at Digital Shadows describe Genesis Market, a criminal-to-criminal marketplace that aggregates and sells digital fingerprints to facilitate cyberattacks. The researchers say ...

A Snapshot of the Ransomware Landscape

Organizations need to take steps to disrupt the ransomware industry by making these attacks more expensive to carry out, according to Jen Miller-Osborn from Palo Alto Networks' Unit 42. ...

UK IT Decision Makers Fear Their Remote Workers Put Company Data at Risk for Data Breach

According to an annual survey from Apricorn, UK IT decision makers are fearing the worst as their staff continues to work in a remote environment.

Do Ransomware Gangs Restore Data, Even After They're Paid?

Only 8% of ransomware victims get all of their data back after paying the ransom, according to researchers at Sophos. The researchers found that, on average, victims who pay the ransom ...

The Cost of Remediating a Ransomware Attack More than Doubles and is Quickly Approaching $2 Million

With 54% of organizations unable to stop a ransomware attack before data is encrypted and operations are impacted, the increasing cost of ransomware remediation is troubling.

U.K. Royal Mail-related Phishing Scams Are Up 645%

New data from CheckPoint highlights how scammers are using simple shipping-related social engineering scams to trick victims into giving up personal information and credit card details.

Ransomware Operators Threaten to Short Victims’ Stocks

The Darkside ransomware operators are now offering to tip off unscrupulous stock traders before they post the names of publicly traded victim companies, the Record reports. The criminals ...

Ransomware Demands Spike by 43% Already in 2021

Cybercriminal groups are increasing their automated and tactical ransomware attacks. Unfortunately, that also means they have an increase in greed.

[HEADS UP] Ransomware Gangs are Creating Ransomware Cartels

Analysis by threat intelligence group Analyst1 recently uncovered that the bad guys are responsible for forming a ransomware cartel.


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