The Multi-Tier Cloud Security (MTCS) Singapore Standard
(SS)584 is a cloud security certification managed by the
Singapore Info-comm Media Development Authority (IMDA). This
standard’s three tiers are designed to certify cloud service
providers at different levels of operational security, with
Tier 3 having the most stringent requirements.
After undergoing an audit conducted by an independent MTCS
Certifying Body, Google Cloud received Tier 3 MTCS
certification for a subset of GCP and Google Workspace
services and data center sites.