An eighteen-word mnemonic phrase will increase stability by including excess words into the sequence. In this article’s an example: Keep your phrase with a physical medium, like paper or perhaps a steel backup, and retain it in a safe position, for instance a Secure. Prevent digital copies. Launched in 2013, https://www.tumblr.com/generalllamacolor/772952501127380992/opening-the-globe-of-bip39-a-comprehensive-guide