I've tried Googling this but can only find articles about how to use the service. What I'm wondering is how the iCloud's "Find My Mac," actually locates your computer? With phones it seems easy because they're connected to cell towers and have GPS. MacBooks don't do GPS, so how can the service locate the device? MAC geolocation is totally unreliable, and IP geolocation is imprecise at best. I'm just not understanding how the service could consistently locate anything.