Which one is the safest way to store bitcoins? I often hear that becomes thefts. I guess some of them are not heard even.
I think online wallet is still safe to use if you are using a special computer just to open an online wallet and is certainly to be equipped with other added security.
what do you mean with special computer? is that a computer which don't have any virus or resistant or what?
I'm not sure on special computer guessing he means less possibility of security issues. For example if you really want a paper wallet without worry you can go all the way to starting with clean OS and updating it, get anti-virus/anti-malware software and update, then make a wallet.
I have computers I play with that even though it sounds like a lot as long as you don't mind blowing away computer not that bad. And it provides a much more secure computer then one that's been surfing the web/downloads.
Hardware wallets done properly are easier in my mind. But paper wallets are free so many love them as hard to beat the price.