cmek-how-it-works changedmanage-claude/cmek-how-it-works
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2929Your key lives in AWS KMS, Google Cloud KMS, or Azure Key Vault. Your provider might charge for it.
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31On Claude Platform and Claude Enterprise, CMEK is available in US regions, and Anthropic processes all encryption operations there. [Each setup page](https://platform.claude.com/docs/en/manage-claude/cmek#set-it-up) names the lowest-latency regions.
31On Claude Platform and Claude Enterprise, Anthropic processes all encryption operations in US regions. Your key can be outside the US, at some cost in latency. [Each setup page](https://platform.claude.com/docs/en/manage-claude/cmek#set-it-up) names the lowest-latency regions.
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3333## When your key takes effect
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