Java Architect Essentials
Jun 17, 2021 · Information Security
WeChat One‑Way Friend Detection Patent and How to Identify Deleted Contacts
The article explains how WeChat users can detect when they have been removed as friends, describes Tencent's recent patent for a single‑way friend detection feature, shows the proposed UI workflow, discusses user reactions, and warns against unsafe third‑party tools.
Friend DetectionPatentWeChat
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