BIP39 stands for Bitcoin Improvement Proposal 39. The words are picked from a particular list of 2048 popular English words which may be utilized to the make a binary seed (your private critical). This extra complexity increases the chance of misplacing the passphrase, and so shedding your copyright. Software wallets https://monobookmarks.com/story18731739/new-step-by-step-map-for-ledger-seed-phrase-bip39