4. Unity of Governmental Effort. Various government entities possess different roles, responsibilities, authorities, and capabilities that can all be brought to bear on cyber incidents. These efforts must be coordinated to achieve optimal results. Whichever Federal agency first becomes aware of a cyber incident will rapidly notify other relevant Federal agencies in order to facilitate a unified Federal response and ensure that the right combination of agencies responds to a particular incident. State, local, tribal, and territorial (SLTT) governments also have responsibilities, authorities, capabilities, and resources that can be used to respond to a cyber incident; therefore, the Federal Government must be prepared to partner with SLTT governments in its cyber incident response efforts. The transnational nature of the Internet and communications infrastructure requires the United States to coordinate with international partners, as appropriate, in managing cyber incidents. 5. Enabling Restoration and Recovery. Federal response activities will be conducted in a manner to facilitate restoration and recovery of an entity that has experienced a cyber incident, balancing investigative and national security requirements, public health and safety, and the need to return to normal operations as quickly as possible. IV. Concurrent Lines of Effort In responding to any cyber incident, Federal agencies shall undertake three concurrent lines of effort: threat response; asset response; and intelligence support and related activities. In addition, when a Federal agency is an affected entity, it shall undertake a fourth concurrent line of effort to manage the effects of the cyber incident on its operations, customers, and workforce. 1. Threat response activities include conducting appropriate law enforcement and national security investigative activity at the affected entity’s site; collecting evidence and gathering intelligence; providing attribution; linking related incidents; identifying additional affected entities; identifying threat pursuit and disruption opportunities; developing and executing courses of action to mitigate the immediate threat; and facilitating information sharing and operational coordination with asset response. 3/8

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