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> Giving apps access to a unique device identifier shared across apps is a privacy leak Correct: 'Non-heuristic antispam' and 'Private device identifiers' are

> Giving apps access to a unique device identifier shared across apps is a privacy leak Correct: 'Non-heuristic antispam' and 'Private device identifiers' are incompatible requirements, unless you introduce another expensive obstacle to overcome. Spamming depends on cheap/free sock puppet accounts. The cost per account is inversely proportional to the value it holds to spammers. That cost can be in Apple's iMessage terms: $100+ per serial number, all devices must include burned-in serial number attestation in their server communications. Or that cost can be in bureaucracy: $10 per notarized "account signup request with verified citizenship", but now all communications can be associated with the notary's logs of your citizenship ID number. There is no way to stop spam without incurring one or another cost to each user. Apple's method doesn't care who you are, so long as you possess Apple hardware. The Pluton method wouldn't either. What other methods exist that are unconcerned with the exact identity of the user, but still make spamming unprofitable?

lern_too_spel 4y ago
I just showed how Apple could implement exactly its method on Android. I'm not sure why you're looking for other methods. As far as private antispam, you can imagine a hashcash-like system that takes into account how many messages you've accepted from the sender, but this is a completely different discussion.
howinteresting 4y ago
I mean, maybe expensive dongles should be a thing of the past and Apple should invest in machine learning a bit more. My Pixel does a great job filtering out SMS spam, with 2 false positives (both automated messages) and zero false negatives in the last month.
- altairprime 4y ago
  I have received a single iMessage spam message in ten years, total. You would have, statistically, received at least 240 false positives in that time assuming current heuristics technology. I don’t think heuristics are the answer if your goal is Project Zero Spam.
  - howinteresting 4y ago
    My goal is not project zero spam, my goal is interoperability and the end of expensive dongles.

lern_too_spel 4y ago

I just showed how Apple could implement exactly its method on Android. I'm not sure why you're looking for other methods. As far as private antispam, you can imagine a hashcash-like system that takes into account how many messages you've accepted from the sender, but this is a completely different discussion.

howinteresting 4y ago

I mean, maybe expensive dongles should be a thing of the past and Apple should invest in machine learning a bit more. My Pixel does a great job filtering out SMS spam, with 2 false positives (both automated messages) and zero false negatives in the last month.

altairprime 4y ago
I have received a single iMessage spam message in ten years, total. You would have, statistically, received at least 240 false positives in that time assuming current heuristics technology. I don’t think heuristics are the answer if your goal is Project Zero Spam.
- howinteresting 4y ago
  My goal is not project zero spam, my goal is interoperability and the end of expensive dongles.