Access control is a security technique that restricts certain people from accessing specified physical locations. To gain access, individuals require authorisation based on any of the following identification protocols:
•Passwords, passphrases, and PIN
•Smart cards and key fobs
•Fingerprints and other biometricmeasurements
Identification details are stored in a secure, internal database within a control unit that connects to a lock which deactivates when connected to a matched identifier, such as someone swiping a card or entering a PIN. Innovation in access control has been focused on the convergence between IP cameras and analytics such as facial recognition, which has allowed integration of multiple access control measures to strengthen security protocols.