Pulse — the Livara blog on private messaging, encryption and security

Signal, without the noise.

Security notes, useful guides, product decisions, and the uncomfortable trade-offs most technology blogs hide below the fold.

1stories 1English 0Persian

Black ceramic privacy core inside a violet field that bends around its sealed surface — THE CORE / REMAINS UNTOUCHED

Security notesProduct decisionsUseful guidesA publication by Livara ↗

01 / COVER STORY1 STORY IN THIS VIEW

Google Push Services vs Background Sync: How FCM Token Routing Exposes Chat Metadata

Featured Compare

September 1, 20266 min read

Google Push Services vs Background Sync: How FCM Token Routing Exposes Chat Metadata

Google Firebase Cloud Messaging (FCM) delivers real-time notifications to billions of Android devices, but this convenience creates a severe structural privacy flaw. Even when an application encrypts message text end-to-end, FCM token routing exposes device identifiers, IP addresses, and exact commu

Read the cover story ↗

02 / ARCHIVETagged “android push notification privacy”

Tagged “android push notification privacy”

No more stories in this view.

Try a different subject or clear the filter.