reset password for sister Apple ID
My sister's iPhone got stolen needs help getting into her Apple ID because she forgot the password
iPhone SE (Gen 3)
Question marked as
Top-ranking reply
If she forgot the Apple ID (iCloud) password, enter the Apple (iCloud) ID, and click Forgot Password. See if she can get a Rescue or Notification email option if necessary. Link to contact Apple Support at the end of the 2nd article.
If she has 2 Factor Authentication enabled, if she can't recover the password using the steps above, she will need to use Account Recovery. The Recovery Process is an automated process and the length of time it takes can vary a lot. Apple ID Support can only answer her questions. They can't intervene in or speed up the process. The article below has some suggestions to shorten the time the process takes.
Apple ID - Recover your Apple ID with two-factor authentication account recovery.