Magecart attacks saw a spike in the early months of 2020 because of the increase in online shopping due to COVID-19. Attacks from various Magecart groups were seen throughout 2020 up to this point and will continue as online shopping continues to grow and people move towards using websites and applications to pay for various services. To prevent fraudulent charges by Magecart or any other credit card thieves, consumers should sign up for one-time user credit cards which can be purchased through verified services or some banks. These services allow the consumer to purchase a pre-loaded credit card that can only be used once or used multiple times but has a balance of zero until the money is added to it. By keeping the balance at zero, if the card were to be compromised, an attacker would not be able to purchase anything with the number. One-time use cards provide the buyer with a credit card number that expires after the purchase. Though these cards may seem like a hassle for many, they do not take that much time to register for and will relieve consumers of the stress that could be caused by having a card compromised. With the biggest shopping day(s) of the year rapidly approaching, and the threat from COVID-19 still looming, many will use online shopping during the holiday shopping season, leaving a huge market for card stealing cybercriminals.

More can be read here: https://www.bleepingcomputer.com/news/security/hacker-group-compromises-mobile-provider-to-steal-credit-cards/