CPC G16H 50/80 (2018.01) [G06Q 50/265 (2013.01); G16H 10/60 (2018.01); G16H 70/60 (2018.01); H04W 4/023 (2013.01); H04W 4/20 (2013.01); H04W 12/088 (2021.01); H04W 4/80 (2018.02)] | 20 Claims |
1. A method comprising:
in response to a request for contact tracing, receiving, from a user device, device adjacency data, wherein the device adjacency data indicates a plurality of contact entries, and wherein each of the plurality of contact entries indicates a respective device identifier of another user device and indicates a respective timestamp corresponding to a detection time of the other user device;
storing an encrypted representation of the device adjacency data in a database;
based on the device adjacency data, transmitting a notification that a user of a further user device has been exposed to a pathogen; and
based on the respective timestamps, erasing at least one of the contact entries of the device adjacency data from the database.
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