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Assuming an adversarial relationship, what sort of metadata could Google capture simply knowing which app was sending the notifications and who was receiving th
by sroerick 2y ago
Assuming an adversarial relationship, what sort of metadata could Google capture simply knowing which app was sending the notifications and who was receiving them?
- throwuxiytayq 2y agoAren’t notifications enqueued on the server side, implying sender info is inscrutable? I’m curious what mechanism you’d propose to gather any valuable metadata given a sufficient volume of encrypted notifications.
- deleted 2y ago[deleted]
- rpdillon 2y agoSchneier mentioned this late in 2023: https://www.schneier.com/blog/archives/2023/12/spying-through-push-notifications.html https://www.schneier.com/blog/archives/2023/12/spying-throug... > Wyden’s letter cited a “tip” as the source of the information about the surveillance. His staff did not elaborate on the tip, but a source familiar with the matter confirmed that both foreign and U.S. government agencies have been asking Apple and Google for metadata related to push notifications to, for example, help tie anonymous users of messaging apps to specific Apple or Google accounts.
- qwertox 2y ago"A Telegram server used FCM to send a message of size X to the device owned by individual Y at this timestamp and this IP address". Nothing else.