Re: [proposals] Why are multi-party computation solutions the only ones that should be considered? (#7)

To be very clear, what I thought I said (and what I should have said if I didn't) is that systems based on multi-party computation seem the most likely to produce the privacy outcomes that I consider acceptable.  They also exist (too many of them, sadly, but the problem of choice is better than the alternatives).

I have not seen any alternative proposal that produces acceptable properties.  That doesn't mean that this is not possible, just that systems like PCM (Apple) or event-level reporting (Google) reveal unacceptable amounts of information about the browsing activities of individuals.  Specifically, they allow details of the interactions of a user with one site to be made available to a different site.  This is, of course, a property that is shared by many - if not all - current attribution systems, especially those that use cookies or link decoration.

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Received on Thursday, 10 February 2022 03:21:35 UTC