Operators will have 90 days to implement centralized short code directory and prevent messages from unregistered senders
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The National Telecommunications Agency published new rules in the Official Gazette of the Union to increase the security of mobile phone users and make scams via text messages (SMS) more difficult.
The National Telecommunications Agency (Anatel) published in the Official Gazette of the Union (DOU) this Wednesday (4) new rules to increase the security of mobile phone users and make it more difficult to apply scams through text messages (SMS).
With the rules, mobile phone operators are obliged to block messages originating from unregistered codes. Each short code must be linked exclusively to a single company, making it easier to identify the origin of shipments.
The requirements apply to SMS in the A2P (Application-to-Person) modality, used by companies to send automated messages to users. In this model, the sender is identified by a short code, usually consisting of a few digits, such as "29222", instead of a conventional cell phone number.
Anatel's Board of Directors ordered mobile phone providers to, within a period of up to 90 days, adopt measures relating to the sending of these messages, such as the implementation and maintenance of a centralized sectoral directory of short codes, available for public consultation, which allows the identification of legal entities responsible for forwarding messages and restricting the use of the A2P SMS messaging service to duly identified legal entities.
Operators will have to ensure that each short code used to identify message senders is intended for the exclusive use of a single legal entity, with sharing prohibited.

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