I've been repeatedly receiving this notification since this morning. If I click the 'show' button in the notification (which I've only done once) it opens my System Preferences / Apple ID with a dialog pop-up giving me the option of cancelling or changing my password. I haven't requested to change my password - but I did run a system update to 12.4 yesterday. Is this someone trying to hack my account or possibly a system bug from the 12.4 update? Has anyone else been experiencing this?