Passphrases are essentially longer, multi-word passwords. They may be easier to remember and provide an added layer of security to your account. Try to use a group of words or a sentence that will be readily familiar to you—the lengthier the passphrase, the better. For example, "Orang3 is my favorit3 color!"
Remember, your passphrase is case-sensitive, needs to be between 8-32 characters and should have at least one number. To make your passphrase even stronger, include spaces and special characters.