FYI,

Cyber-attacks happen every day, but the bad actors are targeting where the money is (credit card data) and personally identifiable information (PII) as a side benefit.

"The Magecart hackers have a singular focus: credit card skimming."

https://www.wired.com/story/magecart-amazon-cloud-hacks/

-- There's nothing for consumers to do. Website services need to properly configure and secure their payment processing websites.