Well... for starters, don't store your private keys on an online machine...
I thought this was common knowledge by now.
I thought this was common knowledge by now.
But the image that is being sold to the public is that one will be able to pay purchases in bitcoins by pointing one's smartphone at a QR code on the cashier's screen. How could I do that without exposing my keys to a hacker attack?
So... when you go out to purchase some items at the grocery store, you put your life savings in cash in your back pocket wallet?
You fund your smartphone with however much you think you will spend while you are out...
Have you looked at smartphone wallets like Mycelium and the security which they can offer?
Think a little bit harder before bringing these easy questions.
Edit: I see that at least three people have already provided such an obvious answer.