Encrypting your wallet when not in use is no protection as you have to decrypt to use it. Trojans lie in wait until an unencrypted wallet.dat is found, and some also have keyloggers to steal your password. I have been preaching bitcoin hardware wallets for a year now to encourage using Trezor or Ledger to move private keys off your laptop or phone. Once you have your bitcoin stolen you will become a believer.
Harware wallets are also not the ultimate solution, they can protect you against virtual theft but not against physical theft.
If a robber robs you with a gun and sees your hardware wallet he will force you to reveal your pasword. This case will probably be more frequent in the future than virtual trojans sneaking on your PC.
Once criminals learn abotu bitcoin, it will be more frequent than mobile phone thefts.
So hardware wallets may not be the best solution.