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FBI Extracts Suspect’s Deleted Signal Messages Saved in iPhone Notification Database
(www.404media.co)
This is a most excellent place for technology news and articles.
It always bears repeating, push notifications are not private, neither for Android, GrapheneOS, nor iOS, even if you use end-to-end encryption. If you are privacy conscious, you should either use settings to hide sensitive data from push notifications or turn them off altogether.
Wdym push notifications are not private on Graphene??
If you use GrapheneOS with push notifications, after enabling Google Play Services, those push notifications are relayed through Google servers. Most apps will include message sender and text in the push notification, meaning that data will pass through Google servers and they can read it.
If you are a GrapheneOS user and leave Google Play Services disabled - which they are by default - you have nothing to worry about, but notifications are generally delayed and use more battery as a downside.