I don't even order anything online with my computer. It's either my iphone 5 or iPad.
It's not just the skimmers, it's the RFID cards. If you have an RFID card, and it is not in a metal case, you are vulnerable.
My wife had her card # info stolen last year at Christmas. Tis the season for the credit/debit card fraud. It took us 60 days to get her back account fixed and get back the money they stole. I bought her the aluma wallet. It protects you from RFID scanners.
This is what my mom does, use 1 credit card for online only, and the one she has has a very low credit limit, under $200 so if she does end up having to pay a charge it's not 10 of thousands! My bank called me a few months ago and asked if I'd made purchases in Cleveland on whatever date. I was like, um, no, they got me $20, and then over drafted my account. I got it all back after a week or so. The lady that helped me with the paperwork said they will just make a batch of cards randomly and use them to see which one works?Not much you can do, other than have a single card for online transactions that has decent fraud protection. We have a Visa card that will call or txt me for large purchases, or for several "micro" purchases (like when a crook is testing the card a penny at a time). This time of year, when the crooks are busy, I get a few txt messages.