I use paper wallet
Bitcoin paper wallets are safe against hackers as the bitcoins are brought offline.
Users have control of their bitcoins at all times as they keep own private keys.
The problem, however, is storage. Paper can be destroyed, torn, fade or otherwise lost.
Unlike hardware wallets, there is no recovery mechanism for paper wallets – so lost bitcoins are lost forever. This is something you need to keep in mind if you want to use this option.