How Are Seed Phrases Generated Default amount of iterations used in wallets is 2048. Increasing this number need to enable it to be more secure against brute power attacks, nonetheless you will have to shop this price. To access your wallet with personalized PBKDF2 you need to use this script https://natural-bookmark.com/story18507479/bitcoin-seed-phrase-generator-with-balance-the-2-minute-rule-for-bip39