India mandates SIM-binding for messaging apps, disabling use without a physical SIM
From Jan 1 2027, India will require messaging services to stay linked to an active SIM, preventing WhatsApp, Telegram and similar apps from working on devices without a registered SIM.
India’s Department of Telecom will enforce a SIM-binding rule for all app-based communication platforms starting Jan 1 2027, obligating a live SIM that matches the registered mobile number to stay in the device. If the SIM is removed, replaced or deactivated, services like WhatsApp, Telegram, Snapchat, Arattai, Sharechat, Jiochat and Signal must cease operation until a valid SIM is reinserted, and any web instance of the app must log out at least every six hours, with users able to re-link via QR code.
The regulation follows findings that the lack of SIM verification enabled overseas actors to conduct cyber-fraud, phishing and digital arrest scams using Indian numbers. To comply, Apple has released an iOS patch that detects devices operating without a physical SIM. Signal has not yet responded to the government’s notice. The policy will impact users who depend on Wi-Fi-only messaging or who frequently change SIM cards, reshaping how popular messaging apps function in India.
Why it matters
The rule forces Indian users to keep a physical SIM in their phones, altering messaging app usage and targeting fraud.
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