In Signal, push notifications simply act as a ping that tells the app to wake up. They don't reveal who sent the message or who is calling (not to Apple, Google, or anyone). Notifications are processed entirely on your device. This is different from many other apps. 2/
Notices by Meredith Whittaker (mer__edith@mastodon.world)
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Meredith Whittaker (mer__edith@mastodon.world)'s status on Tuesday, 12-Dec-2023 06:52:35 UTC Meredith Whittaker -
Meredith Whittaker (mer__edith@mastodon.world)'s status on Tuesday, 12-Dec-2023 06:52:35 UTC Meredith Whittaker PSA: We've received questions about push notifications. First: push notifications for Signal NEVER contain sensitive unencrypted data & do not reveal the contents of any Signal messages or calls–not to Apple, not to Google, not to anyone but you & the people you're talking to. 1/
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Meredith Whittaker (mer__edith@mastodon.world)'s status on Tuesday, 12-Dec-2023 06:52:34 UTC Meredith Whittaker What's the background here? Currently, in order to enable push notifications on the dominant mobile operating systems (iOS and Android) those building and maintaining apps like Signal need to use services offered by Apple and Google. 3/
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Meredith Whittaker (mer__edith@mastodon.world)'s status on Tuesday, 12-Dec-2023 06:52:33 UTC Meredith Whittaker So, while we do not love Big Tech choke points and the control that a handful of companies wield over the tech ecosystem, we do everything we can to ensure that in spite of this dynamic, if you use Signal your privacy is preserved. 5/
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Meredith Whittaker (mer__edith@mastodon.world)'s status on Tuesday, 12-Dec-2023 06:52:33 UTC Meredith Whittaker Apple simply doesn’t let you do it another way. And Google, well you could (and we've tried), but the cost to battery life is devastating for performance, rendering this a false option if you want to build a usable, practical, dependable app for people all over the world.* 4/
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Meredith Whittaker (mer__edith@mastodon.world)'s status on Tuesday, 12-Dec-2023 06:52:32 UTC Meredith Whittaker *(Note, if you are among the small number of people that run alt Android-based operating systems that don't include Google libraries, we implement the battery-destroying push option, and hope you have ways to navigate.) 6/
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Meredith Whittaker (mer__edith@mastodon.world)'s status on Sunday, 03-Sep-2023 13:58:28 UTC Meredith Whittaker Apple's statement is the death knell for the idea that it's possible to scan everyone's comms AND preserve privacy.
Apple has many of the best cryptographers + software eng on earth + infinite $.
If they can't, no one can. (They can't. No one can.)
https://www.wired.com/story/apple-csam-scanning-heat-initiative-letter/