Ethereum Seed Phrase Generator 1 illustration of manually generating entropy could be flipping a coin. But if an attacker will give you a coin which is weighted a bit in favor of heads, your First supply of entropy should have been corrupted. Backup: Once produced, the seed phrase is exhibited https://socialupme.com/story4099342/what-is-a-seed-phrase-seed-phrase-generator-no-further-a-mystery