Device Activity Tracker
How (almost) any phone number can be tracked via WhatsApp
1 follower
How (almost) any phone number can be tracked via WhatsApp
1 follower
Device Activity Tracker is an open-source proof-of-concept that shows how you can infer a phone’s activity state via WhatsApp & Signal — using only timing information from “ghost” reactions.
Device Activity Tracker
Launch date
Device Activity Tracker How (almost) any phone number can be tracked via WhatsApp
Launched on December 10th, 2025