Is Bip39 Secure Default quantity of iterations Employed in wallets is 2048. Expanding this number need to help it become safer against brute power assaults, having said that you will have to store this worth. To access your wallet with personalized PBKDF2 it is best to use this script (or https://thebookmarkage.com/story18566025/bip39-ethereum-wallet-everything-about-bip39-phrase