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 launches
Launch date
Device Activity Tracker How (almost) any phone number can be tracked via WhatsApp
Launched on December 10th, 2025