Door lock with magnetometers

At least one non-transitory computer-readable storage medium having encoded thereon executable instructions that, when executed, cause at least one processor to carry out a method of determining a status of a door, the method comprising:

• receiving a first signal from a first magnetometer disposed within a door lock of the door;
• receiving a second signal from a second magnetometer disposed within the door lock of the door;
• and
• detecting, based on a result of an evaluation of both the first signal and the second signal, a possible attack on the door.

An apparatus comprising:

• an actuator to drive a bolt of a door lock of a door to a locked position and/or to an unlocked position;
• a housing configured to be mounted to the door, the actuator disposed at least in part within the housing;
• a first magnetometer disposed at least in part within the housing;
• a second magnetometer disposed at least in part within the housing;
• at least one processor disposed within the housing;
• and
• at least one storage medium disposed within the housing and having encoded thereon executable instructions that, when executed, cause the at least one processor to carry out a method comprising:
• receiving a first signal from the first magnetometer;
• receiving a second signal from the second magnetometer;
• and
• detecting an unexpected sensor state based at least in part on the first and second signals and one or more reference signals.