1. Separate your bitcoins to hot and cold wallets
Online wallets are called “hot wallets”, since they are at high risk to network based attacks. If you are running any kind of Bitcoin online business, offline (‘cold’) wallets will be a better tool. They are way safer and they are not so attractive for hackers. It would be ideal to keep the bulk of your Bitcoin funds on the cold wallet. And for your day to day Bitcoin transactions keep just a small float of your Bitcoins on your online wallet.
The safest wallets are offline wallets and for day to day transactions you need an online wallet surely for fast and easy transactions but i would still recommend a non custodial hot wallet where the keys of your wallet is in your possession. Using a custodial wallet is risky as the private keys are not in your possession and one can easily get scammed or exchange can get hacked.
2. Store private keys offline
This is a very essential part every bitcoin investor should take note of, storing of private keys online will expose the keys and your assets to hack attacks that will lead to asset theft. It is very common nowadays so to safeguard our assets we should store our keys offline away from internet connection as anything connected to the internet can be compromised.
Storing offline doesn’t mean we should keep them in a place we can easily forget but rather in a place we can easily access them and also it would be wise to make duplicates and storing each in a seperate location in case any unexpected situation.
3. Use fragmented backups
Never thought of this but this sounds like a smart idea making it very difficult for anyone to use even though they come across any fragment. But it would be wise to make duplicates of each fragments in case of unexpected situations.