If a computer shows the slightest sign it could be infected, don’t use it for any transaction. Stick with popular e-commerce sites with the best security and best reasons to protect your financial data. Use websites that ask for info each time you use your card to process your card. Don’t trust “safe” seals, which are supposed to indicate that sites’ security has been analyzed, verified, and approved. If the site doesn’t store your credit card data, there’s no way for a hacker to get it and use it.”]
Source: https://www.csoonline.com/article/2616401/your-guide-to-safe-and-secure-post-holiday-shopping.html