Apple and Google admit that governments can access notifications on mobile devices
Mobile notifications are not the preserve of Android phone and iPhone users, as governments manage to read the information shared, reveals US Senator Ron Wyden.
Apple and Google have confirmed that governments ask them for information about notifications from iPhone and Android smartphone users, although this practice has never been mentioned in their transparency reports.
Apple explains that the federal government prohibited them from disclosing this information, but now that it is public, they will update their transparency reports to include these requests.

The senator asked the government to allow companies to publish detailed statistics on these requests. He did not mention mass surveillance, but requests for information within the legal framework of judicial investigations.
Notifications, which are essential for many mobile applications, pass through Apple or Google servers, putting them in a privileged position to facilitate government surveillance. According to the senator, government agencies can obtain metadata and sometimes even unencrypted content from notifications.
Source : L’Usine Digitale