WhatsApp, Telegram SIM-Binding Mandate To Take Effect From January 1: Report

The Department of Telecommunications (DoT) in India has mandated that messaging platforms such as WhatsApp and Telegram must implement SIM-binding by January 1, 2027. This requirement will link users' messaging services to the active SIM card associated with their registered mobile number. The law aims to enhance traceability and curb various forms of fraud, including phishing, digital arrests, impersonation, and investment scams.

The deadline for compliance is December 31, 2026, and platforms must complete implementation before January 1, 2027. Apple has already updated its iOS software to align with the new SIM-binding rules. While WhatsApp, Arattai, and Telegram have confirmed their efforts to comply, Telegram has yet to provide clarity on its status. Signal has not responded to the government notices.

Snapchat has stated that the mandate does not apply to its service as it does not use phone numbers for user identification. The implementation of SIM-binding may affect users who access messaging apps on phones without the associated SIM or frequently switch SIMs. However, international roaming will not be affected as long as the associated SIM remains in the device.

The government's move comes amid rising concerns over cyber fraud in India, with losses reaching ₹22,495 crore in 2025, down slightly from ₹22,845 crore in 2024.