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Does anyone have any experience of using hardware tokens (like the sealed key-fobs) running TOTP?

For some services, I would much rather have a key-ring-ful of these devices rather than an app on my phone which I also use for reading websites.

I use a mix of

- Google two-factor

- Service-specific two-factor (e.g., Steam authenticator, which provides other features beyond TOTP)

- Non time-based authenticators; Yubikeys are great, and appear to be made of some indestructible material that survives multiple trips through the wash.

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