A global bank's IH&R team is investigating an intricate cyber-espionage campaign.

Advanced persistent threats require coordinated, intelligence-driven response. ECIH emphasizes that APT investigations generate massive volumes of telemetry across endpoints, networks, and cloud platforms.

Option D is correct because Incident Response Automation and Orchestration (IRAO) tools correlate disparate data sources, automate enrichment, and accelerate threat hunting. This enables responders to identify hidden persistence mechanisms and attacker TTPs efficiently.

Options A, B, and C are important but not immediate investigative actions.

ECIH explicitly recommends orchestration platforms for complex, multi-vector incidents such as APTs.