send-my

An Apple airtag probably doesn't but it is apparently possible to send some data at a very low rate (the article in [1] says a few bits per hour) over the find my network [2] [1] https://positive.security/blog/send-my [2] https://github.com/positive-security/send-my

I was initially optimistic about Bitchat but after investigating it does just seem to be an early hobby project. We need more than individual apps meshing via Bluetooth. I’m doubtful Bitchat will ever be used outside of a group of nerds at a festival. We need a standardised protocol commonly implemented by manufacturers. The closest we have now that I’m aware of is Apple’s Find My network in which it is possible to smuggle arbitrary data very slowly. [0] [0]: https://github.com/positive-security/send-my

Cool idea and this was nostalgic as well... I created a similar application to communicate and send beacon signals over SMS (using Twilio) without Internet (as internet went down) during emergency SoS situation motivated by 2015 Chennai floods... Suggestion: You can possibly try if you can use OpenHaystack [1] to send some "unknown tracker found nearby" alert to any nearby iPhone even if the receiver device doesn't have your app installed or use the FindMy network to send arbitrary data for your app's communication. [2] [1] https://github.com/seemoo-lab/openhaystack [2] https://github.com/positive-security/send-my

To everyone talking about anti-tracking features. https://github.com/positive-security/find-you "A modified version of OpenHaystack to showcase the possibility of building a stealth AirTag clone that bypasses all of Apple's tracking protection features." Other projects from them, like https://github.com/positive-security/send-my , also seem interesting.

I’ve researched this for probably the same reason. The simple answer is „no“. As far as I know you can locate an AirTag through the Find My-App on a Mac, but you can’t add one to your account. Retrieval of the data from Apple requires an iCloud account and the keys required to decrypt it is stored in the key storage of your iDevices. By my knowledge it seems to be theoretically possible to use the network with no iDevice and a bunch of faking, but I think it hasn’t been done so far. For work around the network you may be interested in OpenHaystack (custom trackers and client, https://github.com/seemoo-lab/openhaystack) and Send My (custom messages over the network utilizing OpenHaystack, https://github.com/positive-security/send-my).