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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)
TypeScript
5.1k
693
8 contributors
Custom license
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gommzystudio/device-activity-tracker has been featured on GitHub Trending, first reaching #9 on Mar 11, 2026
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First achieved on 30th, Dec 2025 for TypeScript
First achieved on 30th, Dec 2025 across all languages