At its #WWDC24 event in Cupertino, Apple announced Private Cloud Compute, its in-house cloud intelligence system designed specifically for private AI processing.
Apple Private Cloud Compute Foundation Models
The idea is to extend Apple Intelligence from the user’s device to the cloud while preserving security and privacy. Apple says this will enable user to access even larger server-based models than could be achieved on-device, while ensuring that data stays within its Private Cloud Compute infrastructure. The company promises end-to-end encryptions as its best defense. The user data also must not be retained on servers, including via logging or for debugging. The data must also not be accessible by Apple and this means that the PCC infrastructure must not contain privileged interfaces. In addition, Apple says its guarantees must be enforceable and open to third-party verification. Here is a blog posted today on the topic:
Apple’s Craig Federighi said Private Cloud Compute will be powered by custom servers built with Apple silicon. He also noted that user data would not be used to train Apple’s AI models.
- New OS is used for PCC
- No persistant data storage
- No remote shell
- Full ML stack
- Secure Enclave
- Secure Boot
- Trusted Execution Monitor
- Attestation

For each AI request from a user device, an encrypted tunnel is established to a specific server cluster. Only that cluster has the key for the encrypted tunnel. The data is not retained after the response is returned. The session is not accessible to Apple.
https://machinelearning.apple.com/research/introducing-apple-foundation-models
https://security.apple.com/blog/private-cloud-compute
Apple-owned or operated Data Centers
United States:
- Maiden, North Carolina
- Newark, California
- Prineville, Oregon
- Reno, Nevada
- Waukee, Iowa (under construction)
China (in partnership with local providers):
- Guiyang
- Ulanqab
Europe:
- Viborg, Denmark
In addition, Apple confirmed that iOS18 will have SMS-via-satellite capabilities.








