# OIS-08 Application of the Risk Management Policy - Risk Assessment - Domain: OIS – Organisation of Information Security - Since C5:2020: changed (formerly OIS-07) - Web page: https://c5.patrickscheid.de/en/ois-08/ **Supplementary information:** This criterion applies only to risks that reside within the area of responsibility of the cloud service provider. Risks that arise for the cloud service customer when using the cloud service are not covered by this criterion. When outsourcing activities for the provision of cloud services to service organisations, the responsibility for these risks remains with the cloud service provider. Requirements for measures to manage these risks can be found in the criteria area 'Control and Monitoring of Service Providers and Suppliers (SSO)'. Cloud service providers may leverage established risk management standards, such as ISO 27005 or the ISO 31000 family of standards to address risks related to the cloud service. Risk management procedures already implemented at the cloud service provider may be leveraged for OIS-08 where possible to reduce redundancies. Documentation of risks, treatment plans and risk acceptance in the sense of this criterion does not require specific formal frameworks; lean forms of documentation can be leveraged wherever appropriate to address the OIS-08 subcriteria. ## Basic criterion ### OIS-08.01B The cloud service provider performs the risk management process specified by OIS-07 as needed and at least annually. **Supplementary information:** Examples of scenarios in which the risk management process may be executed 'as needed' include, but are not limited to, the following: 1. Changes to the threat landscape (cf. OIS-05); 2. Security incidents or business disruptions; 3. Changes to the cloud service provider's legal, regulatory, self-imposed and contractual requirements relevant to the information security of the cloud service (cf. COM-01); 4. Changes to the cloud service provider's organisational structure with impact on roles, responsibilties or procedures for provisioning the cloud service; 5. Changes to the achitecture of the cloud service (cf. OPS-31); 6. Events related to the cloud service provider's service organisations (cf. SSO-05); 7. Exceptions to policies or procedures (cf. SP-03); and 8. Identification of critical vulnerabilities (cf. OPS-22) or compliance deviations (cf. COM-03). ### OIS-08.02B The following aspects are taken into account when identifying risks, insofar as they are applicable to the cloud service provided and are within the area of responsibility of the cloud service provider: 1. Processing, storage or transmission of cloud service customer data and cloud service derived data with different protection needs; 2. Occurrence of vulnerabilities and incidents in technical protective measures for separating shared resources; 3. Attacks via access points, including interfaces accessible from public networks and accidentally exposed interfaces; 4. Dependencies on service organisations; 5. An encryption and key management risk programme which addresses the risks of unauthorised disclosure, modification, destruction, or information loss of cryptographic keys; and 6. Separation of cloud service customers and their data within systems, networks and storage. **Supplementary information:** Shared resources are e.g. networks, RAM or storage. When determining protection needs of customer data, regulatory requirements applicable to customer data should be considered such as PCI-DSS, HIPAA, DORA (regulation on digital operational resilience for the financial sector and amending regulations), NIS 2 Directive and KRITIS. ### OIS-08.03B Policies and procedures covering risk assessments relevant for the delivery and operation of the cloud service are implemented by the cloud service provider. ### OIS-08.04B The risk assessment's results are provided to relevant internal parties. **Supplementary information:** Relevant internal parties can include the cloud service provider's management and security teams. ### OIS-08.05B Relevant external parties are provided with information, specific to the parties' purposes, resulting from the risk assessments. **Supplementary information:** Relevant external parties can include cloud service customers, subservice organisations and regulatory agencies. Information that can be relevant in this context includes information about identified vulnerabilities, security incidents and threat intelligence. The cloud service provider can choose to make this information accessible through its SSRM (cf. OIS-03), its documentation and guidelines (cf. PSS-01) or its processes for informing cloud service customers about known vulnerabilities (cf. PSS-03). ### OIS-08.06B The analysis, evaluation and treatment of risks, including the approval of actions and acceptance of residual risks, is reviewed by the risk owners for adequacy at least annually. In addition, in case of significant changes to the cloud service, a review is carried out focusing on the parts of the risk assessment relevant to the change. ## Additional criterion ### OIS-08.01AS (additional, sharpens 01B) The cloud service provider performs the risk management process as specified by OIS-07 as needed and at least annually. The evolution of the risks is monitored and the risk assessments are reviewed correspondingly. ### OIS-08.01AC (additional, complementing) The cloud service provider integrates information security risks into a documented Enterprise Risk Management (ERM) programme which addresses the following aspects: 1. Integration of information security risks at the enterprise level to promote information security risk-awareness across the entire organisation; 2. Leadership awareness and support for identification, analysis and treatment of information security risks to foster continuous improvement; and 3. Consideration of the cloud service provider's strategic objectives when managing risks to align risk treatment with the organisation's goals. ### OIS-08.02AC (additional, complementing) When identifying risks, the cloud service provider also takes into account the detection of unusual and harmful actions of internal threat actors, insofar as it is applicable to the cloud service provided and is within the area of responsibility of the cloud service provider. ## Changes since C5:2020 From BSI's C5:2026 changelog. **Basic criterion:** Specified which data types the criterion applies to. Removed conflicting tasks and areas of responsibilities from the aspects to be taken into account when identifying risks, instead added encryption and key management risk programmes and the separation of cloud service customers. Added requirement regarding the implementatino of policies and procedured covering risk assessments. Added requirements regarding the availability of risk assessment information to internal and external parties. Further specified frequency of reviews by requiring them to be performed in case of significant changes as well. Bullet points are now sorted to ease discussions about specific list items. **Additional criterion:** Additional criterion newly included. --- Source: BSI C5:2026, machine-readable edition v1.0.1, © Federal Office for Information Security (BSI) 2026, reproduced unchanged under CC BY-ND 4.0 (https://creativecommons.org/licenses/by-nd/4.0/). Change notes: BSI C5:2026 Changelog, © BSI 2026, CC BY-ND 4.0. Unofficial presentation, not affiliated with BSI.