I've been thinking for a while now that it's probably time to change my password. Then, when I logged back in I see 2FA is now a thing so I thought I'd make the suggestion that others consider changing their passwords. Besides, how many times do you have your bank or email account (or work for that matter) "suggesting" you change your password? Quite often I would imagine.
I dislike it. If I use a strong password, secure it well, I don't have need to change it after 3 months or 6 months.
Banks and their policies to force users to change password like this, can cause their users to set up a new password which is nearly similar to a previous password, with minor change. This practice does not help to secure any account.
Set your password to ten to twelve characters - but not ones that are only found on your phone (otherwise you'll be stuck logging on on you cell phone) - source a random password generator app and don't use words or phone numbers/birthdays. (which app do you use?)
GUIDE] How to Create a Strong/Secure PasswordAre your passwords in the green?