New car, fear of thieves... Yes, we all have a super comprehensive insurance that covers the value of the car 100% for the first few years, but it's a shame if one day it disappears from the car park. Any iOS device can listen to an AirTag in "lost mode", and send the location to its owner. All without you having to know the gentleman sending you the signal, or even know he sent it, securely in theory via iCloud. The system has been working for a while now to find lost iPhones, iPads or Macs that were offline, actually.