Mandiant Expertise OnDemand is a cybersecurity consulting service offered by Mandiant, now part of Google Cloud. The service provides access to expert-led security capabilities for organizations facing cyber threats. The service offers incident response capabilities including rapid response to active breaches, identification of past and ongoing compromises, crisis management, breach containment, and detailed remediation strategies. Strategic readiness services help organizations strengthen resilience against threats like ransomware and supply chain attacks while enhancing overall cybersecurity strategies. Technical assurance offerings include simulating real-world attacks to test security controls and identifying security gaps in defense mechanisms. Penetration testing services conduct red team simulations and advanced attack testing, with evaluations guided by the MITRE ATT&CK framework. The service also provides cybersecurity transformation consulting to mature cyber defense capabilities through process and technology improvements, including optimization of security operations and threat-hunting functions. Organizations can add service level agreements for guaranteed response times. Cyberseer serves as an official partner delivering Mandiant Expertise OnDemand services to customers.