Comprehensive list of resources to help you prevent, mitigate & resolve Magento security incidents. All listed vendors have experience with Magecart-related attacks.
Are you a merchant dealing with an incident? If you have experienced staff, you can use the tools listed below to speed up the recovery process and prevent a repeat. If you don't have staff available or need an external report for compliancy, you can engage one of the consultancies below.
Official Adobe resources are marked as such.