ISO 27001 Annex A.9 Access control

A.9 Access control

A.9.1 Business requirements of access control

Objective: To limit access to information and information processing facilities.

A.9.1.1 Access control policy

Control
An access control policy shall be established, documented and reviewed based on business and information security requirements.

A.9.1.2 Access to networks and network services

Control
Users shall only be provided with access to the network and network services that they have been specifically authorized to use.

A.9.2 User access management

Objective: To ensure authorized user access and to prevent unauthorized access to systems and services.

A.9.2.1 User registration and de-registration

Control

A formal user registration and de-registration process shall be implemented to enable assignment of access rights.

A.9.2.2 User access provisioning

Control
A formal user access provisioning process shall be implemented to assign or revoke access rights for all user types to all systems and services.

A.9.2.3 Management of privileged access rights

Control
The allocation and use of privileged access rights shall be restricted and controlled.

A.9.2.4 Management of secret authentication information of users

Control
The allocation of secret authentication information shall be controlled through a formal management process.

A.9.2.5 Review of user access rights

Control
Asset owners shall review users’ access rights at regular intervals.

A.9.2.6 Removal or adjustment of access rights

Control
The access rights of all employees and external party users to information and information processing facilities shall be removed upon termination of their employment, contract or agreement, or adjusted upon change.

A.9.3 User responsibilities

Objective: To make users accountable for safeguarding their authentication information.

A.9.3.1 Use of secret authentication information

Control
Users shall be required to follow the organization’s practices in the use of secret authentication information.

A.9.4 System and application access control

Objective: To prevent unauthorized access to systems and applications.

A.9.4.1 Information access restriction

Control
Access to information and application system functions shall be restricted in accordance with the access control policy.

A.9.4.2 Secure log-on procedures

Control
Where required by the access control policy, access to systems and applications shall be controlled by a secure log-on procedure.

A.9.4.3 Password management system

Control
Password management systems shall be interactive and shall ensure quality passwords.

A.9.4.4 Use of privileged utility programs

Control
The use of utility programs that might be capable of overriding system and application controls shall be restricted and tightly controlled.

A.9.4.5 Access control to program source code

Control
Access to program source code shall be restricted.

ISO 27001 Table of Contents

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