Copying login keychains between Macs fails on Secure Enclave models

Manually copying login keychain files between Macs no longer works on Secure Enclave-equipped models.

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The fact

This limitation affects macOS Tahoe users and complicates data migration.

Apple is thus enhancing security, but at the expense of user flexibility.

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Auto-synthesis from 1 media source · identified on September 11, 2026