[judge2020]

> Anyone can get your phone number.

If you put it in lost mode. Otherwise, it doesn't reveal the owner's phone number. It's assumed that clicking lost mode and putting a phone number means you expect to be called about that lost item.

[PurpleFoxy]

I have tested them. If you nfc scan one not in lost mode, it opens a page explaining what airtags are and shows you it’s serial number. If you put it in lost mode, scanning shows the same page but with a phone number and a lost message.

Being in lost mode will also give the owner a notification when it is found.

The airtags are also account locked the whole time and must be manually removed by the owner before someone else can use them.