Device Activity Tracker: This WhatsApp Privacy Flaw Is Terrifying
GitHub - gommzystudio/device-activity-tracker: A phone number can reveal whether a device is active, in standby or offline (and more). This PoC demonstrates how delivery receipts + RTT timing leak sensitive device-activity patterns. (WhatsApp / Signal)A phone number can reveal whether a device is active, in standby or offline (and more)