After risk treatment, the organization assesses and identifies any remaining residual ICT risks for each risk assessed. Residual ICT risks that exceed the organization’s defined ICT risk tolerance level must either be further treated or formally accepted by the risk owner.
The acceptance of such residual ICT risks requires documented justification and formal approval by senior management or the designated risk governance body. The organization maintains an inventory of all accepted residual ICT risks, including their respective justifications.
All accepted residual ICT risks are subject to review at least annually. This review includes:
- identification of any changes to the residual risk
- assessment of any new or available mitigation measures
- reassessment of the validity of the justification for acceptance.