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News: The Department of Telecommunications has recently directed major app-based communication services to implement SIM binding to curb cyber-frauds and misuse.
About SIM Binding
- SIM binding is a security process that links a user’s messaging or communication app to the specific SIM card used during registration.
- Authorized under: The Department of Telecommunications (DoT) has issued these directions under the Telecommunication Cybersecurity Amendment Rules, 2025.
- Under the Rules, the DoT has introduced the concept of Telecommunication Identifier User Entity (TIUE).
- TIUE is a non-licence entity that uses telecommunication identifiers such as mobile numbers to identify and serve its users.
- Under the Rules, the DoT has introduced the concept of Telecommunication Identifier User Entity (TIUE).
- Working mechanism
- liSIM binding nks the app to the SIM used during registration and continuously checks the same SIM identifiers stored in it.
- If the identifiers in the device do not match those recorded at registration, the app treats it as an identity mismatch and blocks access.
- Key features
- The app works only when the registered SIM is present and active in the handset.
- Web or desktop instances must be logged out periodically, not later than six hours, with re-linking through a QR code.
