Smishing: Guidelines for safe and trustworthy SMS campaigns

SMS campaigns have not gone out of fashion and are booming, especially due to their high open rate, which exceeds 90%. 

However, The increase in cybercrime is also present, and some of these crimes are closely related to SMS campaigns, giving rise to the "cybercrime".Smishing". 

What is the Smishing

Well, this term has emerged from the merger of two other terms: SMS and "phishing".  

In this sense, the "phishing"refers to mailings that seek to defraud citizens, and therefore, the "smishing"is the same in the field of SMS.

We can therefore define the "smishing" as those techniques consisting of sending SMSs pretending to be a legitimate entity with the aim of defrauding citizens by stealing data and private information, or through financial charges. 

Based on the above, and due to the rise of cybercrime, it is very common that a great distrust of SMS is generated.  

So how can we convey trust and confidence in our SMS campaigns? 

Here are some useful tips for our campaigns. 

  • Alphanumeric senders: 

One of the best practices is the use of alphanumeric senders, i.e. use our name directly, so that our customers do not receive an SMS from a telephone number they most likely do not know.

To do this, we must resort to an SMS API, which allows the integration of business applications and software for professional use, using HLR recognition technology, which allows us to check that a number is valid and correct. 

  • Notify our clients: 

A piece of advice that always comes in handy is to give advance notice to customers. In this sense, It is advisable to tell them which means of communication we are going to use to communicate with them. 

Furthermore, this notice may be given at the outset, at the time of contracting, or at a later stage, and customers should be allowed to choose the preferred means of communication, in order to facilitate communication. 

  • No sensitive information: 

This is, perhaps, one of the key points to distinguish a simulated SMS from a real one, since obtaining such data is the main objective of many fraudsters and hackers. 

Thus, a trustworthy institution will never ask its customers to provide sensitive data, and even less so through a device, where leaks can occur.

For this reason, we should not ask for this type of information and, furthermore, we should warn them that it will never be done, making it clear that, in case they receive an SMS asking for this type of information, it does not belong to us and they should exercise caution.

  • Secure links: 

Last but not least, all the links we send must be securein addition to the correct ones.  

Specifically, our URLs must be preceded by "https:", as this is the only way to achieve encrypted and therefore data-secure communication.

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