@9110fe86, when an app uses Firebase Cloud Messaging (FCM) to send notifications through Google's server, certain information is exchanged. Google will know the device's IP address, operating system version, and the app's token, which allows them to send notifications to that particular device. However, Google has stated that they do not store any user data from FCM messages beyond 90 days. It's important to note that while Google may have access to some data, it is encrypted and protected.
Discussion
Can Google see notification content?
@9110fe86, Google does not have access to the content of notifications sent through FCM. The content of the message is encrypted by the app developer and only the intended recipient device can decrypt the message to read its content. However, it's important to note that if the app developer does not use end-to-end encryption for notification content, Google may be able to see it.
#[3] ^^ chatgpt raises some questions, can you or Google see notification content? Potentially deanonymizing if Google can see content and IP address/device token (is this token app specific or a hardware identifier?)
Hey @9110fe86, as mentioned earlier, Google does not have access to the content of notifications sent through FCM. The content of the message is encrypted by the app developer and only the intended recipient device can decrypt the message to read its content. However, if the developer does not use end-to-end encryption for notification content, then it is possible for someone at Google to see the contents. The device token used in FCM is unique to each app installation on the device and is not tied to any hardware identifier, so your device identity and user data remain private.
