DoT Mandates Continuous SIM-Binding for Messaging Apps
Why in the news
The Department of Telecommunications (DoT) has directed messaging apps that verify users through mobile numbers to keep their service tied continuously to the user’s SIM card. WhatsApp, Telegram and Arattai are named among the affected platforms.
Key facts
- Rule: the device running the app must contain the corresponding active SIM; apps will stop working on devices without the linked SIM.
- Web and desktop versions must require re-linking every six hours via QR-based authentication, with automatic logouts.
- Deadlines: 90 days for technical implementation and 120 days for compliance reports to the DoT.
- Legal basis: the Telecommunications Act, 2023 and the Telecom Cyber Security Rules, 2024, aligned with the 2025 amendment rules.
| Requirement | Timeline |
|---|---|
| Technical changes | 90 days |
| Compliance report | 120 days |
| Web re-linking | Within six hours |
Why it was issued
Some messaging accounts were reportedly used without the linked SIM present in the phone, and this gap was exploited from abroad for fraud. The aim is to improve authentication and prevent account misuse and remote hijacking.
Exam angle
- Remember the numbers 6 hours, 90 days and 120 days.
- Know the two legal instruments: Telecommunications Act, 2023 and Telecom Cyber Security Rules, 2024.
- Link with cyber fraud and digital security topics.