Access control by contactless smart card

An apparatus comprising:

• memory to store instructions thereon;
• a processor circuit to execute the instructions, wherein in response to executing the instructions, the processor circuit is caused to:
• receive an authentication code from a communications interface of a contactless card associated with a user account, the user account also being associated with a computer application executing on the apparatus;
• determine, based on the authentication code, whether the user account is authorized to alter a state of an access control system;
• determine a geographic location of the apparatus;
• and
• in response to the user account being authorized to alter the state of the access control system and the geographic location of the apparatus being located within a predefined distance of the access control system, transmitting, by the mobile device, a control signal directly to a control circuit of the access control system to thereby alter the state of the access control system.

A non-transitory computer-readable storage medium having computer-readable instructions embodied therewith, the computer-readable instructions executable by a processor circuit to cause the processor circuit to:

• receive encrypted data from a communications interface of a contactless card associated with a user account;
• determine, based on the encrypted data, whether the user account is authorized to alter a state of an access control system;
• determine a geographic location thereof;
• and
• in response to the user account being authorized to alter the state of the access control system and the geographic location of the mobile device being located within a predefined distance of the access control system, transmitting, by the mobile device, a control signal directly to a control circuit of access control system to thereby alter the state of the access control system.