Watch out for e-commerce sites asking for personally identifying information. E-commerce sites only really need two main data points from you: 1) your payment information, like a credit card number and 2) your shipping address. If they ask for anything else, consider finding an alternative. You don’t need to supply your Social Security number just to have a package shipped to your residence. In addition, be aware of sites that ask for too much information at the start of your purchase. For instance, if you are asked to create a login with your full name, address, and date of birth, it might be worth finding another e-commerce site where you can choose to use a username or anonymous email address to log in.