Automated message "Your Apple ID was used to sign in to iCloud via a web browser"

Hi

I recently connected my Apple account (Family Calendar) to my "Home Assistant" home automation system by creating an app-specific password, and since then I have started getting regular emails titled "Your Apple ID was used to sign in to iCloud via a web browser".

I figured it was my Home Assistant doing this, however, it recently dawned on me that the email is the same for my 'known' system as it would be for any 'unknown' systems, how do I tell them apart, the email contains no other details other than a date and time?

If the automated message could include an IP address or if it was an app-specific password that is used or both then hopefully I would be able to spot someone trying to break into my account.

Thanks

Adam