5. Shopping on public computers or over public networks is dangerous. There could be keylogging software or hardware installed on the PC itself; someone might even be using packet-sniffing software to spy on you. Avoid logging into financially sensitive user accounts in public. And never, ever enter your credit-card details.
6. URLs can be enough to warn you off a site. If it starts with numbers, is very long or makes extensive use of unusual characters such as ‘%’, avoid it. A web browser will ignore anything written to the left of an @ sign when placed in a URL and direct you somewhere entirely different.
7. Legitimate shopping sites will encrypt your data before passing it across the internet. When you enter payment mode, check that the site’s URL begins https://. If it doesn’t, refuse to hand over credit-card information. A closed padlock or key should also appear on the taskbar at checkout.