Your apple id is the account that you use for everything you do with apple, like when you shop the itunes store, sign in to icloud, buy an app, and more.. With ios 10+, you can easily change the icloud password even if you don’t know the original one. this goes directly from the device (iphone, ipad, mac etc.) all you need is the device passcode (or mac system password); sometimes it can even be done without the passcode.. The most important thing to any apple user (besides their iphone of course!) is an apple id. it lets you access and store content in icloud, make facetime calls, send imessages, use apple pay, and purchase items from the app store and itunes store..
Go to the my apple id website (appleid.apple.com) and follow the instructions to reset your apple id password.for more information, see the apple support article apple id: changing your password.. after changing your icloud password, make sure you update it on all your devices and in any email apps you use to get your icloud email.. Step 2 if you have signed in with your icloud account, tap your apple id > password & security > change password and reset a new password. (on ios 10 or earlier, tap settings > icloud > apple id) (on ios 10 or earlier, tap settings > icloud > apple id).