There are several ways to identify fake or fraudulent SMS messages. For instance, checking the language of the message, the sender's number, and verifying the authenticity of the information. Additionally, one needs to be cautious if the message asks for personal information or requests clicking on suspicious links.
There are quite a few ways to identify fake SMS messages. For example, if there are spelling mistakes in the message, or if the language is not natural, then that can be a cause for suspicion. Messages from unknown numbers should be verified. Generally, familiar banks or organizations send messages to their customers from known numbers only. If any message asks for your personal information such as, bank account number, OTP, PIN number etc., then you should definitely avoid it.
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If there are suspicious links, they should not be clicked without verification. If any message mentions very quick big prizes or discounts, then that is also a warning signal. If the same message keeps coming repeatedly or if the same message keeps coming from different numbers, it should be verified. If any message conveys something on behalf of an organization or bank, then the information can also be verified by visiting that organization's website. If there is any doubt about a message, then it is better to avoid it and if necessary, contact that organization or bank directly to verify the authenticity.