JavaScript-based Magecart card-skimming attacks have been the main threat to e-commerce sites in recent years, but PHP code remains a major source of card skimming activity.

The malware is loaded via Google Tag Manager, allowing them to steal credit card numbers when customers check out. A hidden PHP backdoor is used to keep the code on the site and steal user data.

Namely, this new code adds additional forms to the checkout page, where customers are asked to add their names, addresses, credit card numbers, expiry dates, and CVV numbers.

A new credit card stealing hacking campaign is doing things differently than we have seen in the past by hiding their malicious code inside the 'Authorize.net' payment gateway module for ...

A new Magecart credit card stealing campaign hijacks legitimate sites to act as "makeshift" command and control (C2) servers to inject and hide the skimmers on targeted eCommerce sites.