Magecart Remediation on ASM

I was wondering if anyone has researched remediation techniques for Magecart, aka formjacking or web skimming. There is quite a bit of information on the Internet about this type of attack but very little on how to stop it. Has anyone used ASM WebSafe to squash this bug? If a magecart attack is successful, wouldn't WebSafe at least encrypt the sensitive data being stolen making it useless?

Thanks!

Tony