What are the measures to keep your private key safe and in memory ? Are there any alternatives to retrieve the key back ?
You currently have the right to defend your bin boxes for yourself. You can make sure that you keep your private keys in another offline mode. Use more cool wallets if you have more money and better store there. Write your keys on paper and keep it attentive.
After creating your bitcoin wallet the next thing to always do is to make sure that your keys are securely saved you can print it and put it into a safe especially when you plan to have a lot of coin in your wallet.