SIM-binding mandate forces changes to WhatsApp use in India | Digital Watch Observatory

Skip to content 3 Dec 2025 Frequent SIM checks and six-hour logouts will change daily WhatsApp use across India. India plans to change how major messaging apps operate under new rules requiring SIM binding and frequent re-verification. The directive obliges platforms to confirm that the original SIM remains active, altering long-standing habits around device switching. Services have 90 days to comply with the order. The Department of Telecom says continuous SIM checks will reduce misuse by linking each account to a live subscriber identity. Companion tools such as WhatsApp Web will automatically log out every 6 hours. Users will need to relink sessions with a QR code to stay connected. The rules apply to apps that rely on phone numbers, including WhatsApp, Signal, Telegram, and local platforms. The approach mirrors SIM-bound verification used in banking apps in India. It adds a deeper security layer that goes beyond one-time codes and registration checks. The change may inconvenience people who use Wi-Fi-only tablets or older devices without an active SIM card. It also affects anyone who relies on WhatsApp Web for work or on multi-device setups under a single number. Messaging apps may need new login systems to ease the shift. Officials
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