What makes an effective password or passphrase

What makes an effective password or passphrase

A good, strong, and secure password is at least 8 characters long and contains a mix of numbers, letters, lower case, and upper case characters. Even stronger and more secure is a passphrase - a combination of words that feature a mix of numbers, letters, lower case, and upper case characters. The strongest passphrases are 20-30 characters long. Your password or passphrase should be memorable to you, and not obvious to others.

Avoid using your name, the town where you live, your birthday, or phone number. Don't use repeating numbers or letters or sequences like "abc" or "123." Also avoid using sequences of letters that are near each other on the keyboard such as "qwerty" or "asdfg."

MKA requires a password with at least 8 characters, including at least one capital and one numeric character.