Bip39 Wallet. It's easy — if you don't be concerned about copyright inheritance, no one else will — not your application or hardware wallet distributors, not your exchanges, rather than your wealth supervisors. Anybody else who discovers the phrase can steal the bitcoins. It have to be saved key, as https://totalbookmarking.com/story19370034/bip39-wallet-https-linktr-ee-bip39-a-review-of-bip39-words