How to locate and secure your private keys
To manage your funds make sure you save your public and private keys. You can find these under the extension menu --> Wallet --> Settings (gear icon) --> Account Details
Make sure you copy your account details to a text file and encrypt it.
Securing your private keys
Imagine the blockchain is a padlock and your private/secret key or mnemonic seed is the key to gain access to the balance in your wallet. It is highly recommended to backup your key/seed to someplace only you can access it. For example on a text file inside a password-protected ZIP/RAR archive, stored on multiple (preferably encrypted) USB drives. Secondly, since your offline wallet stores your keys as well, it would be wise to consider running it in a secure environment such as a VM and/or air-gapped laptop.
Apply common sense and avoid single points of failure. Don't over-complicate things. (For example, storing your keys exclusively on a single USB drive has potential for loss and data corruption). You may lose access to your funds without means for retrieval in such cases.)
Some ideas to protect your keys and wallet:
- Written/printed paper copies in safe storage
- Password protect files
- Encrypted USB drives
- Use of public key infrastructure (PKI)
- Use trusted password software (e.g. KeePass or BitWarden)
- Cloud storage with sufficient security measures
- Run your wallet inside a Virtual Machine
- Run your wallet on an air-gapped device (e.g. on a restricted laptop on a separate LAN)
- Hardware wallet (e.g. Ledger)