We recommend using a hardware wallet – sometimes called “cold storage” – widely accepted as the most secure method for storing cryptocurrency. It's backed by security experts and keeps your private keys offline – so your crypto is inaccessible to anyone but the holder of specific access codes.
Whenever using a blockchain wallet, ensure you keep secure backups of your Mnemonic seed phrase and never reveal this to anyone. It is best practice to use a hardware solution such as Ledger.