Identification And Authentication
Prevent the reuse of identifiers for a defined period.
Identifiers uniquely associate a user ID to an individual, group, role or device. Establish guidelines and implement mechanisms to prevent identifiers from being reused for the period of time established by the organization in the policy. Example As the IT administrator for your organization you maintain a central directory/domain that holds user accounts and computers within the organization. As part of your job you issue unique usernames (firstname.lastname@example.org) for the staff to access resources. When you issue staff computers you also rename the computer to reflect to whom it is assigned (joe-laptop01). Joe has recently left the organization so you must manage the former staff member’s account. Incidentally, the replacement is also named Joe. In the directory you do not assign the previous account to the new user. You create an account called joe02. This account is assigned the appropriate permissions for the new user. A new laptop is also provided with the identifier of joe02-laptop01.
Prevent reuse of identifiers for a defined period.
Identifiers are provided for users, processes acting on behalf of users, or devices (3.5.1). Preventing reuse of identifiers implies preventing the assignment of previously used individual, group, role, or device identifiers to different individuals, groups, roles, or devices.
CIS Controls v7.1 16.7, 16.10, 16.12
NIST SP 800-53 Rev 4 IA-4
NIST SP 800-171 Rev 1 3.5.5
NIST CSF v1.1 PR.AC-1, PR.AC-6, PR.AC-7
IA.3.085.[a] a period within which identifiers cannot be reused is defined; and
IA.3.085.[b] reuse of identifiers is prevented within the defined period.