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What are the security differences between storing a seed phrase in the following ways:

- Locked note in iCloud
- Password-protected in Keychain like how Rainbow does it
- largeBlob with a passkey in iOS17+

I think I understand the UX implications of each, but curious about the technical side

Venture Partner at marinventures.com | Security Consultant at horizonslaw.io | Cybersecurity M.S. Candidate at gatech.edu

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Thanks for the tag @samantha! So going in order:
- Locked notes: copying and pasting isn't great and not designed for key management
- Keychain: see below
- Passkey: Designed specifically for keys and uses iCloud keychain escrow so pretty much builds on top of keychain.
@dwr.eth gets into it in his recent posts.