India, Dec. 1 -- The Department of Telecommunications (DoT) has directed online messaging platforms to enforce mandatory SIM binding for all users, a move which will affect Meta-owned WhatsApp, Telegram, Signal, ShareChat, Snapchat, JioChat, Josh, and Zoho's Arattai.

Under the new Telecommunication Cybersecurity Amendment Rules, 2025, which became effective in October, platforms must ensure users can only access services on devices with the SIM card originally used for registration.

According to a report by The Indian Express, companies have 90 days to implement technical changes, with compliance reporting due within four months.

". it has come to the notice of the Central Government that some of the app-based communication services th...