Suddenly received an appleid code message.

What you want to ask is what happened when you suddenly received an appleid text message? The appleid was attacked. According to Zhongguancun Online official website, an appleid code message was suddenly received because of an attack on the appleid, and someone was logging in with the user's account. You can view or update your name, password, security settings and other important information by logging in to appleid, so you should log in and change your password in time.