When backing up your mnemonic phrase, we strongly endorse using physical media, which include composing about the mnemonic phrase card or maybe a metallic board like the SafePal Cypher. You may also preserve several back-ups of it. This post clarifies BIP39, the standard that defines how seed phrases are made, https://livebookmarking.com/story18847893/5-essential-elements-for-bip39-explained