#CryptoSecurity101 : Seed Phrase (Recovery Phrase/Mnemonic Phrase): This is a series of 12-24 words that can regenerate your private key and, by extension, your entire wallet. It's your ultimate backup. Write it down and store it offline in multiple secure, discreet locations. Do not store it digitally (e.g., on your computer, phone, or in cloud storage), as it can be vulnerable to hacks.