India, Dec. 11 -- The Department of Telecommunications (DoT) in India has issued a decisive mandate requiring major communication apps to implement SIM binding within the next 90 days, marking one of the strongest interventions yet to curb cyber-fraud originating outside the country.

Under the Telecom Cyber Security Rules, 2024, platforms such as WhatsApp, Telegram, Snapchat, Signal, ShareChat, Josh, Arattai, and JioChat must ensure that their services remain continuously tied to the physical SIM card associated with the user's mobile number.

Furthermore, all web and desktop sessions must automatically log out every six hours to ensure a secure re-authentication process, confirming the presence of an active SIM.

The mandate is a major ...