This is only hypothetical for government ID's, but in theory government IDs could provide pairwise pseudonymous identifiers with services. Your ID with a single service is stable, but it is different with each service.

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pseudalopex 2 days ago | parent [-]

They imagined a scenario where the state ordered 2 companies to identify users. How would replacing 1 company with the state improve this?

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Seattle3503 2 days ago | parent [-]

What would the state force you to do in this case?

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stvltvs 2 days ago | parent [-]

Is your question about what authoritarian states do with information about everyone's private lives?

	▲	Seattle3503 11 hours ago \| parent [-]
		No, it's a question about how a government would break cryptographic protocols, or force others to. If the identifiers are pseudonyms, if the government compelled someone to share their user IDs, all the government would see are basically a bunch of UUIDs keyed to that provider. So what specific actions are you talking about. What is your threat model?