Mason is in charge of security at a firm that employs sales representatives who travel frequently. The company has implemented attribute-based access control (ABAC) to regulate network access. What is a concern that is unique to ABAC and could result in the rejection of login attempts?

ABAC checks a collection of attributes, along with the username and password, to determine whether to grant access or not. One of the attributes scrutinized is the user's location. Since the employees in this organization travel frequently, they will often be in novel locations, which could lead to ABAC rejecting their login attempts. Incorrect passwords can certainly result in login failure, but this is not an issue specific to ABAC. ABAC does not prevent remote access, and a firewall can be configured to allow or block any traffic as desired.