Recently Bloomberg posted the information that it took hackers less than 10 years to steal over 14% of all existing Bitcoins and Ethereum from the wallets of their holders. The total sum they have stolen is more than $1,2 billion! How to protect yourself from hackers attacks? Are you afraid of this stuff?
The best thing to do here is to get a hardware wallet. Or move all your loing term bitcoin holding into a paper wallet, and use a air gapped system to make this paper wallet. If your system was ever connected to internet, then it is definitely vulnerable to getting hacked.