Annex 3: Characteristics of Cyberattack Risks and Matters to Be Considered in the Treatment and Countermeasures that Are Associated with Incident Readiness Figure 1: Example of Flow from the Occurrence of a Cyberattack to Recovery (Various other flows, apart from the following, are also possible.) Example 1: In the case of working toward swift recovery of services Service provision level (ability) High Cyberattack Occurrence of anomaly Recovery time objective Normal service level Recovery level objective Treatment based on contingency plan Operation during normal times Treatment based on business continuity plan Treatment for full recovery Low Time Example 2. In the case of treatment based on safety regulations, etc. before the start of recovery work (treatment of damage in the case of disaster, accidents, or other emergencies) Service provision level (ability) High Cyberattack Safety measures (Suspension of services, etc.) Occurrence of anomaly Recovery time objective Normal service level Recovery level objective Operation during normal times Treatment based on contingency plan Treatment based on safety regulations, etc.* ↑ Treatment based on business continuity plan Treatment for full recovery Low Time * Treatment based on safety regulations, etc. refers to treatment that focuses on reducing and suppressing damage, and generally does not change whether or not the cause of damage is a cyberattack. On the other hand, in cases where IT is used in the treatment, it would be preferable to consider the characteristics of cyberattack risks. The characteristics of cyberattack risks described hereafter are mutually connected, and the matters to be considered for a certain characteristic may also be effective on other characteristics. Consequently, in the formulation or revision of the CP and BCP, in addition to the matters to be considered with regard to a specific characteristic, it is also necessary to review the treatment and countermeasures based on matters to be considered for other characteristics. 34

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