Abstract: Methods, systems, and apparatus, including computer programs encoded on computer-storage media, for visual authentication. In some implementations, a method may include obtaining images of a person at a property; detecting a discontinuity in an appearance of the person in the images of the person at the property; determining that the discontinuity does not correspond to a known occlusion; and providing an indication of a potential spoofing attack.

Abstract: Disclosed herein are optical systems (e.g., LiDAR systems) and methods with improved eye safety. In some embodiments, a system includes a first light emitter configured to illuminate a first field of view (FOV) using light emitted at a first wavelength and a second light emitter configured to illuminate a second FOV using light emitted at a second wavelength. The second FOV is wider than the first FOV, and the first FOV extends to a further distance from the system than the second FOV. The system also includes a sensor configured to detect reflections off of targets within the second FOV, and at least one processor configured to execute one or more machine executable instructions.

Abstract: A computerized-system for anomaly detection of Point-to-Point avionic communication messages via a message-bus between an entity to one or more aircraft-systems in an aircraft during phases of flight, is provided herein. The computerized-system may include a bus-message queue to store bus-avionic-communication-messages transmitted via one or more input buses; an anomaly queue to store anomaly bus-messages; a memory to store the bus-message queue and the anomaly queue; a C-BIT mechanism to operate one or more preconfigured test routines; and one or more processors to operate a rule engine based on a preconfigured ruleset to detect one or more anomalies of bus-avionic-communication-messages for each bus-message in the bus-message queue; The rule engine may be configured to store each bus-message that is detected as an anomaly in the anomaly queue and to send one or more alerts to be presented via one or more external devices for each bus-message in the anomaly queue.