What are criteria for recognition of spam messages, spam calls, and spam emails in Vietnam?

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Question date: 28/09/2022

What are criteria for recognition of spam messages, spam calls, and spam emails in Vietnam? Thank you!

    • Pursuant to Article 4 of the Circular 22/2021/TT-BTTTT (takes effect from 01/03/2022) stipulating criteria for recognition of spam messages, spam calls, and spam emails in Vietnam as follows:

      A message is identified as a spam message according to the following criteria:

      - The frequency of message sending is the number of messages sent from the message sending source in a period;

      - Pattern: the sending source is mainly used for sending messages and the percentage of making or receiving calls is low; the ratio of sending messages to unrelated subscribers is the ratio of sending messages to unrelated subscribers (that have never been texted before) to total messages;

      - Samples of spam messages are common character patterns for recognition of spam messages including samples of spam messages collected and shared by telecommunications enterprises.

      A call is identified as a spam call according to the following criteria:

      - The frequency of call making is the number of calls made from the call making source in a period;

      - Pattern: the sending source is mainly used for making calls and not receiving or sending messages; the ratio of calls with short contact time is the ratio of calls with short duration (from connection to call termination) to total calls; the ratio of calls with short intervals between short calls (the time between two consecutive calls) is the ratio of calls with short intervals to total calls; the ratio of calls to unrelated subscribers is the ratio of calls to unrelated phone numbers (that have never been called before) to total calls.

      An email is identified as a spam email according to the following criteria:

      - The frequency of email sending is the number of emails sent from the email sending source in a period;

      - Pattern:

      + The sending source is mainly used for sending emails and not receiving or exchanging information;

      + The ratio of sending emails to unrelated email addresses is the ratio of sending emails to unrelated email addresses (have never exchanged emails before) to total emails.

      - The technology that is used for sending or receiving emails.

      Best regards!

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    "This English translation is for reference purposes only and not a definitive translation of the original Vietnamese texts"

    LEGAL BASIS OF THIS SITUATION
    • Article 4 of the Circular 22/2021/TT-BTTTT Download
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