Unverified50% confidenceFactExact time
The iCloud Keychain synchronization protocol is based on a circle-of-trust mechanism, where a new device joining must authenticate through an existing trusted device or recovery key
1
Sources
50%
Confidence
Long-term
Relevance
9/11/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedSecure storage of API keys on iOS relies on Keychain Services, which is protected at the hardware level by the Secure Enclave coprocessor; the data is bound to the device and is not included in iCloud backups by default.78% similarUnverifiedAuthy从设计之初就支持多设备同步和加密云备份，Microsoft Authenticator支持iCloud或Google账户备份73% similarUnverifiedUsers who rely on locally encrypted storage will face permanent data loss if they forget their password, and cross-device synchronization requires reliance on third-party services such as iCloud.73% similarUnverifiediCloud备份在默认情况下并不包含Keychain中标记为仅本设备的条目73% similar
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