1. If you feel that you will be making a lot of online purchases in the future, consider trying to get a separate bank card to use only for these transactions. It is simpler to track all transactions when they are the only items listed about this card's transaction records. Additionally, you don't need to worry about your own funds being compromised, even temporarily, if you are a victim of fraud.
2. Make sure that you're entering your payment details on a safe and secure site. Look for "https://" inside the URL of the site that you're trying to buy something from. If you don't see that or no symbol of any website security, then it's probably a good idea not to trust those people along with your account information.
3. If you are shopping online, never give out your Social Security number. There is no website that requires this number for you to buy something. If you are being asked for your Social Security number during checkout, you are probably on a scam website. Leave this site and discover one which has a better reputation.
4. For those who have questions while shopping, choose a live chat function on the online store. Many big brands (and even some boutique stores) now have this functionality. It is possible to chat immediately with a customer support representative to repair any issues or answer any questions before you purchase. That can give you a lot of peace of mind.
5. When looking for a product online, take the time to read reviews. Try finding the same product on different sites to read as much reviews as is possible. Reading many reviews will help you get a more general notion of whether or not the item you are interested in meets high standards of quality.