Before doing online shopping, it is important to collect some information on the site were you want to make a purchase. Then you should make sure that you don't forget your password, and it would be a good idea to have one for each sites where you do purchases. It is important to check on the crypt system used by the site were you want to buy stuff, to avoid that in case of an act of piracy, your account gets pirated as well. Having a gear icon showing the encryption on the site you are visiting is really important, as well as the https:// in the beginning of the address. You should also learn how to detect fraudulent emails by having a look on the internet which are fraud or not.
Related Topics on the french guide : acheter en ligne, aménagement et décoration, gastronomie and bricolage