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On 3: Although you didn't give many details about this, I hope that your security system doesn't disarm when any of your cell phones is close to home, regardless of who happens to be carrying it...

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My physical (schlage) key doesn't have check my fingerprint, so if someone steals that, they get in. If their cellphone behaves the same way, that doesn't seem like a step backwards, security-wise.

Though if my phone's NFC could unlock my door but required my fingerprint before unlocking my door, that would be kinda neat.

Its a trade-off for us. We had a security system for about a year before we realized it was inconvenient to arm/disarm it, so having a geofence ensured we always have it active when we need it to be. Your point is not invalid though.

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