If you've ever entered your email somewhere on the net or subscribed to newsletters or anything else then obviously you'll get lots of deals sent to you. But be careful because it's also around this time that some people will try to get some money from you by sending ransomware to you. Make a mistake and open an attachment containing ransomware and your computer will be "locked" until you pay a "ransom." How to avoid this? Don't open emails sent to you by stores you've never heard. 90% discount? Nope. Don't open that email.