I keep seeing all these posts that someone can hack my wallet. First I did not think that this could be done? If it can be done, how can I prevent it from happening? Does my wallet need to be online in order for them to be able to hack it or can they still hack a paper wallet?
No one can hack a paper wallet, but if you keep your bitcoin at a webite that holds the private keys then yes you could lose the bitcoin. the bitcoin is not yours unless you hold the private keys......
