One way to get scammed is through the use of fake e-mails. Fortuantely fake e-mails are easy to detect if you know the right things to look for. There are three things to ask youself about every e-mail...
1.) Do you know the sender?
2.) what is the language like?
3.) What are they asking from you?
Note about attachments: If you don't know the sender, don't open any attachments.