The line is often unclear whether or not an element can be considered physical or logical access control. Physical access control is a mechanical form and can be thought of physical access to a room with a key.
This type of access control can also be embedded inside an application, operating system, database, or infrastructure administrative system. These components enforce access control measures for systems, applications, processes, and information. Logical access control tools are used for credentials, validation, authorization, and accountability in an infrastructure and the systems within. Lauren Collins, in Computer and Information Security Handbook (Third Edition), 2013 Logical Access Controls Persons in possession of the proper access card, the appropriate security level, and in some cases a pin are granted entry to a room once the credentials are checked against a database. For example, when an employee is fired, his or her badge access can be disabled, as can the employee’s multiple system access accounts. A benefit of having logical access controlled centrally in a system allows for a user’s physical access permissions to be instantaneously revoked or amended. Thus, physical access should be considered a logical access control. Physical access is controlled by software, the chip on an access card and an electric lock grant access through software.
Logical access controls tools are used for credentials, validation, authorization, and accountability in an infrastructure and the systems within. Lauren Collins, in Cyber Security and IT Infrastructure Protection, 2014 Logical Access Controls
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