ISO 27002:2022, Control 7.10 – Storage Media

ISO 27002:2022 Revised Controls

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Use of storage media devices such as solid-state drives (SSDs), USB sticks, external drives, and mobile phones are vital to many critical information processing operations such as data back-up, data storage, and information transfer.

However, the storage of sensitive and critical information on these devices introduces risks to the integrity, confidentiality, and availability of information assets. These risks may include loss or theft of storage media containing sensitive information, propagation of malware into all corporate computing networks via the storage media, and failure and degradation of storage media devices used for data back-up.

Control 7.10 addresses how organisations can establish appropriate procedures, policies, and controls to maintain the security of storage media throughout its life cycle, from its acquisition to its disposal.

Purpose of Control 7.10

Control 7.10 enables organisations to eliminate and mitigate risks of unauthorised access to, use, deletion, modification, and transfer of sensitive information hosted on storage media devices by setting out procedures for the handling of storage media across its entire life cycle.

Attributes Table

Control 7.10 is a preventive type of control that requires organisations to create, implement and maintain procedures and measures to ensure the security of storage media devices from their acquisitions to their disposal.

Control TypeInformation Security PropertiesCybersecurity ConceptsOperational CapabilitiesSecurity Domains
#Preventive#Confidentiality
#Integrity
#Availability
#Protect#Physical Security
#Asset Management
#Protection
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What Storage Media Does Control 7.10 Cover?

Control 7.10 applies both to digital and physical storage media. For example storage of information on physical files is also covered by Control 7.10.

Furthermore, alongside the removable storage media, fixed storage media such as hard disks is also subject to Control 7.10.

Ownership of Control 7.10

Control 7.10 requires organisations to create and implement appropriate procedures, technical controls, and organisation-wide policies on the use of storage media based on the organisation’s own classification scheme and its data handling requirements such as legal and contractual obligations.

Considering this, information security managers should be responsible for the entire compliance process.

General Guidance on Compliance

Removable Storage Media

While removable storage media is essential to many business operations and they are commonly used by most personnel, they present the highest degree of risk to the sensitive information.

Control 7.10 lists ten requirements organisations should adhere to for the management of removable storage media throughout its lifecycle:

  1. Organisations should establish a topic-specific policy on the acquisition, authorisation, use, and disposal of removable storage media. This policy should be communicated to all personnel and to all relevant parties.
  2. If it is practical and necessary, organisations should put in place authorisation procedures on how removable storage media can be taken out of corporate premises. Furthermore, organisations should maintain log records of the removal of storage media for audit trail purposes.
  3. All removable storage media should be stored in a secure area such as a safe, taking into account the information classification level assigned to the information and the environmental and physical threats to storage media.
  4. If confidentiality and integrity of information contained on removable storage media are of critical importance, cryptographic techniques should be used to protect the storage media against unauthorised access.
  5. Against the risk of degradation of removable storage media and loss of information stored on the media, the information should be transferred to a new storage media device before such risk occurs.
  6. Critical and sensitive information should be copied and stored on multiple storage media to minimise the risk of loss of critical information.
  7. To mitigate the risk of complete loss of information, registration of removable storage media devices can be an option to consider.
  8. Unless there is a business-related reason to use removable storage media ports such as USB ports or SD card slots, they should not be allowed.
  9. There needs to be a monitoring mechanism in place for the transfer of information to removable storage media devices.
  10. When information contained in physical mediums such as papers is transferred via courier or post, there is a high risk of unauthorised access to this information. Therefore, appropriate measures should be applied.

Guidance on Secure Reuse and Disposal of Storage Media

Control 7.10 provides separate guidance on secure reuse and disposal of storage media so that organisations can mitigate and eliminate risks to the compromise of the confidentiality of information.

Control 7.10 highlights that organisations should define and apply procedures for the reuse and disposal of storage media, taking into account the sensitivity level of information contained in the storage media.

In establishing these procedures, organisations should consider the following:

  1. If a storage media will be reused by an internal party within an organisation, the sensitive information hosted on that storage media should be irreversibly deleted or reformatted before it is authorised for reuse.
  2. Storage media hosting sensitive information should be destroyed in a secure manner when it is no longer needed. For instance, paper documents can be shredded and digital equipment can be physically destroyed.
  3. There should be a procedure for the identification of storage media items that need to be disposed of.
  4. When organisations choose to work with an external party to handle the collection and disposal of storage media, they should conduct due diligence to ensure that chosen vendor is competent and it implements appropriate controls.
  5. Maintaining a record of all disposed items for audit trail.
  6. When multiple storage media is to be disposed of together, the accumulation effect should be taken into account: Combining different information pieces from each storage media may transform non-sensitive information into sensitive information.

Last but not the least, Control 7.10 requires organisations to carry out a risk assessment on damaged equipment storing confidential information to decide if the equipment should be destroyed instead of being repaired.

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Changes and Differences from ISO 27002:2013

27002:2022/7.10 replaces 27002:2013/(08.3.1, 08.3.2, 08.3.3, 11.2.5)

There are four key differences that need to be highlighted:

  • Structural changes

Whereas the 2013 version contained three separate controls on management of media, disposal of media, and physical media transfer, the 2022 Version combines these three controls under Control 7.10.

  • 2022 Version includes requirements for the reuse of storage media

In contrast to the 2013 version that only addressed the secure disposal of storage media, the 2022 Version also deals with the secure reuse of storage media.

  • 2013 version contains more comprehensive requirements for the physical transfer of storage media

The 2013 Version entailed more comprehensive requirements for the physical transfer of storage media. For instance, the 2013 Version included rules on ID verification for couriers and packaging standards.

Control 7.10 in the 2022 Version, on the other hand, only stated that organisations should act with diligence when choosing service providers such as couriers.

  • 2022 Version requires a topic-specific policy on removable storage media

While the 2022 and 2013 Versions are similar to a great extent in terms of requirements for removable storage media, the 2022 Version introduces the requirement of establishing a topic-specific policy on removable storage media. The 2013 version, on the other hand, did not cover this requirement.

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New Controls

ISO/IEC 27002:2022 Control IdentifierISO/IEC 27002:2013 Control IdentifierControl Name
5.7NewThreat intelligence
5.23NewInformation security for use of cloud services
5.30NewICT readiness for business continuity
7.4NewPhysical security monitoring
8.9NewConfiguration management
8.10NewInformation deletion
8.11NewData masking
8.12NewData leakage prevention
8.16NewMonitoring activities
8.23NewWeb filtering
8.28NewSecure coding

Organisational Controls

ISO/IEC 27002:2022 Control IdentifierISO/IEC 27002:2013 Control IdentifierControl Name
5.105.1.1, 05.1.2Policies for information security
5.206.1.1Information security roles and responsibilities
5.306.1.2Segregation of duties
5.407.2.1Management responsibilities
5.506.1.3Contact with authorities
5.606.1.4Contact with special interest groups
5.7NewThreat intelligence
5.806.1.5, 14.1.1Information security in project management
5.908.1.1, 08.1.2Inventory of information and other associated assets
5.1008.1.3, 08.2.3Acceptable use of information and other associated assets
5.1108.1.4Return of assets
5.12 08.2.1Classification of information
5.1308.2.2Labelling of information
5.1413.2.1, 13.2.2, 13.2.3Information transfer
5.1509.1.1, 09.1.2Access control
5.1609.2.1Identity management
5.17 09.2.4, 09.3.1, 09.4.3Authentication information
5.1809.2.2, 09.2.5, 09.2.6Access rights
5.1915.1.1Information security in supplier relationships
5.2015.1.2Addressing information security within supplier agreements
5.2115.1.3Managing information security in the ICT supply chain
5.2215.2.1, 15.2.2Monitoring, review and change management of supplier services
5.23NewInformation security for use of cloud services
5.2416.1.1Information security incident management planning and preparation
5.2516.1.4Assessment and decision on information security events
5.2616.1.5Response to information security incidents
5.2716.1.6Learning from information security incidents
5.2816.1.7Collection of evidence
5.2917.1.1, 17.1.2, 17.1.3Information security during disruption
5.30NewICT readiness for business continuity
5.3118.1.1, 18.1.5Legal, statutory, regulatory and contractual requirements
5.3218.1.2Intellectual property rights
5.3318.1.3Protection of records
5.3418.1.4Privacy and protection of PII
5.3518.2.1Independent review of information security
5.3618.2.2, 18.2.3Compliance with policies, rules and standards for information security
5.3712.1.1Documented operating procedures

People Controls

ISO/IEC 27002:2022 Control IdentifierISO/IEC 27002:2013 Control IdentifierControl Name
6.107.1.1Screening
6.207.1.2Terms and conditions of employment
6.307.2.2Information security awareness, education and training
6.407.2.3Disciplinary process
6.507.3.1Responsibilities after termination or change of employment
6.613.2.4Confidentiality or non-disclosure agreements
6.706.2.2Remote working
6.816.1.2, 16.1.3Information security event reporting

Physical Controls

ISO/IEC 27002:2022 Control IdentifierISO/IEC 27002:2013 Control IdentifierControl Name
7.111.1.1Physical security perimeters
7.211.1.2, 11.1.6Physical entry
7.311.1.3Securing offices, rooms and facilities
7.4NewPhysical security monitoring
7.511.1.4Protecting against physical and environmental threats
7.611.1.5Working in secure areas
7.711.2.9Clear desk and clear screen
7.811.2.1Equipment siting and protection
7.911.2.6Security of assets off-premises
7.1008.3.1, 08.3.2, 08.3.3, 11.2.5Storage media
7.1111.2.2Supporting utilities
7.1211.2.3Cabling security
7.1311.2.4Equipment maintenance
7.1411.2.7Secure disposal or re-use of equipment

Technological Controls

ISO/IEC 27002:2022 Control IdentifierISO/IEC 27002:2013 Control IdentifierControl Name
8.106.2.1, 11.2.8User endpoint devices
8.209.2.3Privileged access rights
8.309.4.1Information access restriction
8.409.4.5Access to source code
8.509.4.2Secure authentication
8.612.1.3Capacity management
8.712.2.1Protection against malware
8.812.6.1, 18.2.3Management of technical vulnerabilities
8.9NewConfiguration management
8.10NewInformation deletion
8.11NewData masking
8.12NewData leakage prevention
8.1312.3.1Information backup
8.1417.2.1Redundancy of information processing facilities
8.1512.4.1, 12.4.2, 12.4.3Logging
8.16NewMonitoring activities
8.1712.4.4Clock synchronization
8.1809.4.4Use of privileged utility programs
8.1912.5.1, 12.6.2Installation of software on operational systems
8.2013.1.1Networks security
8.2113.1.2Security of network services
8.2213.1.3Segregation of networks
8.23NewWeb filtering
8.2410.1.1, 10.1.2Use of cryptography
8.2514.2.1Secure development life cycle
8.2614.1.2, 14.1.3Application security requirements
8.2714.2.5Secure system architecture and engineering principles
8.28NewSecure coding
8.2914.2.8, 14.2.9Security testing in development and acceptance
8.3014.2.7Outsourced development
8.3112.1.4, 14.2.6Separation of development, test and production environments
8.3212.1.2, 14.2.2, 14.2.3, 14.2.4Change management
8.3314.3.1Test information
8.3412.7.1Protection of information systems during audit testing

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