Message encryption keys are only shared with devices that have been cross-signed by their owner.
Encryption will throw an error if a verified user replaces their identity.
Events are decrypted only if they come from a cross-signed device. Other events will result in a decryption
failure. (To access the failure reason, see MatrixEvent.decryptionFailureReason.)
A type of DeviceIsolationMode.
Message encryption keys are only shared with devices that have been cross-signed by their owner. Encryption will throw an error if a verified user replaces their identity.
Events are decrypted only if they come from a cross-signed device. Other events will result in a decryption failure. (To access the failure reason, see MatrixEvent.decryptionFailureReason.)