THE National Security Agency is urging Apple and Android users to change two specific settings on their phones to prevent possible cyberattacks.

The security agency is raising awareness about the linked device and group link settings that could fully clone your text messages on someone else's device.

Signal and WhatsApp users are vulnerable to attack via those two popular features of the apps that make them easier to use but also more vulnerable to exploitation.

Linked devices allow users to access their synced text messages on any of their approved devices.

This means that if you have WhatsApp or Signal on your phone, you can also access those messages on your laptop or iPad .

The group link setting allows users to invite other people to a group chat using a link rather than

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