Google proactively protects its cloud infrastructure. Here are several notable security features of GCP:
Custom hardware—GCP controls their own data center, including the entire hardware stack. This enables them to quickly respond to threats. GCP implements a custom hardened operating system and file system, each optimized for performance and security.
Encryption—GCP encrypts data in transit as it moves between the GCP infrastructure and GCP customers. Data is also encrypted when it moves between GCP data centers and when the data is at rest within GCP services.