Where did you get "There's been news going around saying that you need to put in a certain address to able to steal that account" from? You can't steal any Bitcoin account unless by putting in a random address. The address it like the username of your account. in order to get into the account you also need to to know the password. To make it more secure you can enable 2 factor verification in the settings of your account. "Two-step verification is a process that involves two authentication methods performed one after the other to verify that someone or something requesting access is who or what they are declared to be".