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?
If you have an easy to guess private key, then anybody can hack it from anywhere.
If you have a virused online PC where you keep your wallet, or you have an online web wallet then its also vulnerable.