Actually, all of these could potentially be an attempt to scam you.

1. Never sign in to any account by following a link. Use the companies app or website, and double-check the URL.
2. Only buy from secure sites, and always log out after so your information isn’t stored for the next person to see.
3. Be careful and only buy from verified sellers.
4. Even when we are careful, our card numbers can be written down and used later by people we don’t know.