Purpose of Control 8.3
Access to information from internal and external sources is the cornerstone of an organisation’s information security policy.
Control 8.3 is a preventative control that maintains risk by establishing a series of rules and procedures that prevent unauthorised access/misuse of an organisation’s information and ICT assets.
Attributes Table of Control 8.3
| Control Type | Information Security Properties | Cybersecurity Concepts | Operational Capabilities | Security Domains |
|---|---|---|---|---|
| #Preventive | #Confidentiality | #Protect | #Identity and Access Management | #Protection |
| #Integrity | ||||
| #Availability |
Ownership of Control 8.3
Control 8.3 deals with an organisation’s ability to control access to information.
As such, ownership should reside with the Chief Information Security Officer (or organisational equivalent), who holds responsibility for the organisation’s overall information and data security practices.
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General Guidance on Control 8.3
In order to maintain effective control over information and ICT assets, and in support of access restriction measures, organisations should ensure the following in line with a topic-specific approach to information access:
- Prevent anonymous access to information, including far-reaching public access.
- Where public or third-party access is granted, organisations should ensure that access does not extend to sensitive or business critical data.
- Operate with adequate maintenance measures that control systems access, and any associated business applications or processes.
- Dictate data access on a user-by-user basis.
- Specify data access rights between groups that validate specific data operations, such as read, write, delete and execute.
- Retain the ability to partition off business critical processes and applications using a range of physical and digital access controls.
Guidance – Dynamic Access Management
Control 8.3 advocates for a dynamic approach to information access.
Dynamic access management has numerous residual benefits for organisational processes that feature the need to share or use internal data with external users, including faster incident resolution times.
Dynamic access management techniques protect a broad range of information types, from standard documents to emails and database information, and have the ability to be applied on a granular file-by-file basis, enabling tight control of data on an organisational level.
Organisation’s should consider such an approach when:
- Requiring granular control over what human and non-human users are able to access such information at any given time.
- The need arises to share information with external parties (such as suppliers or regulatory bodies).
- Considering a “real-time” approach to data management and distribution that involves monitoring and managing data use as it occurs.
- Safeguarding information against unauthorised amendments, sharing or output (printing etc).
- Monitoring the access to and changing of information, particularly when the information in question is of a sensitive nature.
Dynamic access management is of particular use for organisations that need to monitor and protect data from creation through to deletion, including:
- Outlining a use case (or series of use cases) that apply data access rules based on the following variables:
- Identity
- Device
- Location
- Application
- Outlining a process that covers off the operation and monitoring of data, and establishing a thorough reporting process which is in turn informed by a sound technical infrastructure.
All efforts to formulate a dynamic access management approach should result in data being protected by:
- Ensuring that access to data is the end result of a successful authentication process.
- A degree of restricted access, based on the data type and its ability impact business continuity.
- Encryption.
- Printing permissions.
- Thorough audit logs that record who access data, and how that data is being used.
- An alerts procedure that flags up inappropriate data use, including (but not limited to) unauthorised access and distribution, and attempted deletion.
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Changes and Differences from ISO 27002:2013
27002:2022-8.3 replaces 27002:2013-9.4.1 (Information access restriction), and represents a major shift in how ISO considers information access management in accordance with the aforementioned dynamic approach (a technique that isn’t mentioned in the 27002:2013-9.4.1)
27002:2022-8.3 contains a large amount of guidance notes relating to dynamic access management that are absent from its 2013 counterpart, and organisations are advised to consider these on a topic-by-topic basis, when seeking certification.
New ISO 27002 Controls
| ISO/IEC 27002:2022 Control Identifier | ISO/IEC 27002:2013 Control Identifier | Control Name |
|---|---|---|
| 5.7 | NEW | Threat intelligence |
| 5.23 | NEW | Information security for use of cloud services |
| 5.30 | NEW | ICT readiness for business continuity |
| 7.4 | NEW | Physical security monitoring |
| 8.9 | NEW | Configuration management |
| 8.10 | NEW | Information deletion |
| 8.11 | NEW | Data masking |
| 8.12 | NEW | Data leakage prevention |
| 8.16 | NEW | Monitoring activities |
| 8.23 | NEW | Web filtering |
| 8.28 | NEW | Secure coding |
| ISO/IEC 27002:2022 Control Identifier | ISO/IEC 27002:2013 Control Identifier | Control Name |
|---|---|---|
| 6.1 | 07.1.1 | Screening |
| 6.2 | 07.1.2 | Terms and conditions of employment |
| 6.3 | 07.2.2 | Information security awareness, education and training |
| 6.4 | 07.2.3 | Disciplinary process |
| 6.5 | 07.3.1 | Responsibilities after termination or change of employment |
| 6.6 | 13.2.4 | Confidentiality or non-disclosure agreements |
| 6.7 | 06.2.2 | Remote working |
| 6.8 | 16.1.2, 16.1.3 | Information security event reporting |
| ISO/IEC 27002:2022 Control Identifier | ISO/IEC 27002:2013 Control Identifier | Control Name |
|---|---|---|
| 7.1 | 11.1.1 | Physical security perimeters |
| 7.2 | 11.1.2, 11.1.6 | Physical entry |
| 7.3 | 11.1.3 | Securing offices, rooms and facilities |
| 7.4 | NEW | Physical security monitoring |
| 7.5 | 11.1.4 | Protecting against physical and environmental threats |
| 7.6 | 11.1.5 | Working in secure areas |
| 7.7 | 11.2.9 | Clear desk and clear screen |
| 7.8 | 11.2.1 | Equipment siting and protection |
| 7.9 | 11.2.6 | Security of assets off-premises |
| 7.10 | 08.3.1, 08.3.2, 08.3.3, 11.2.5 | Storage media |
| 7.11 | 11.2.2 | Supporting utilities |
| 7.12 | 11.2.3 | Cabling security |
| 7.13 | 11.2.4 | Equipment maintenance |
| 7.14 | 11.2.7 | Secure disposal or re-use of equipment |
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