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Targeted Phishing and Web Skimming Attacks on Online Payment Systems

Updated 3mo agoFirst seen Dec 31, 20252 sources

A series of sophisticated cyberattacks have targeted online payment systems and e-commerce users through phishing emails, malicious browser extensions, and large-scale web skimming operations. One campaign impersonated WordPress.com, sending convincing domain renewal emails that redirected victims to a fake payment portal designed to steal credit card details and 3-D Secure OTPs, with exfiltration occurring via Telegram. Another operation involved over 50 malicious scripts injected into checkout and account creation flows on e-commerce sites, using modular payloads tailored for specific payment processors like Stripe, PayPal, and Mollie, and leveraging fake domains to evade detection.

In parallel, threat actors have deployed malicious browser extensions across Chrome, Edge, and Firefox, impacting millions of users by hijacking search queries, stealing data, and committing affiliate fraud. These extensions often remain dormant for extended periods before being weaponized through updates, further complicating detection. Collectively, these campaigns demonstrate a significant evolution in cybercriminal tactics, blending phishing, web skimming, and browser-based attacks to compromise sensitive financial and personal information at scale.

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Targeted Phishing and Web Skimming Attacks on Online Payment Systems
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EVENT TIMELINE

How this story unfolded

2 events from the most recent confirmed update back to the earliest known activity.

2 EVENTS
Dec 31, 20256mo ago

Fake WordPress domain-renewal phishing campaign observed

Researchers documented a phishing campaign impersonating WordPress.com domain renewal notices, directing victims to a fake payment portal at soyfix[.]com. The operation stole credit card details and 3-D Secure OTPs, exfiltrating them via Telegram while using Alibaba Cloud-linked mail infrastructure and spoofing-friendly email conditions.

Dec 30, 20256mo ago

Source Defense researchers uncover large-scale Magecart skimming campaign

Source Defense Research identified a global web-skimming operation using more than 50 malicious scripts against e-commerce sites. The campaign harvested payment card data, customer identities, credentials, and email addresses through checkout and account-creation flows using localized payloads and deceptive infrastructure.

LINKED ENTITIES

Related entities

Vulnerabilities, threat actors, malware, products, organizations, and breaches Mallory has linked to this story.

9 LINKEDOpen in app
Threat actors
1 linked
Organizations
8 linked
Alibaba CloudAutomatticMollieStripePayPalOnePaySource Defense ResearchPagSeguro
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