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Neither WhatsApp nor Telegram: which is the safest messaging app


It is about Signal that although it is not very popular, cybersecurity experts highlight it from the rest. How is it different?

Thinking of a life without being communicated through Whatsapp or Telegram messages seems practically impossible.

However, it may not always be taken into account that these applications are not as safe as we think.

Data leaks continue to increase and for this reason it is essential to start protecting content and personal information, and to know

the pros and cons

of the different 

messaging applications


In this framework, it is important to know that there is an alternative to

WhatsApp or Telegram


This is the

 Signal app

, which, although it is not as popular, is always mentioned by cybersecurity experts when referring to privacy in messaging.

WhatsApp is the most used messaging app but not the most secure.

Photo: Reuters

Before beginning with the analysis of the functionalities and security measures of each one, it is important to know the

details of each application




Current leader in messaging, it was bought in 2014 by



Since then, the application has been growing in features such as channels and group chats, video calls, end-to-end encryption, and recently, a payment system.

In other words, it is

the most used application

, with extensive functionalities and which belongs to one of the largest business conglomerates on the Internet.



It became

one of the top 5 most downloaded apps worldwide in 2022

and now has more than 700 million monthly active users.

They are currently rolling out a premium tier with additional features and at the same time looking to monetize a portion of their large user base.

It belongs to a self-funded, non-profit organization and is currently based in Dubai.



Unlike the previous ones, it is an open source application, whose libraries and protocols are published on GitHub (a free online repository that allows you to manage projects and control code versions).

This makes the implementation of the app and its

security protocols

easily verifiable by the entire community.

Although Signal began to gain relevance in 2015 after Edward Snowden (Worldwide surveillance network whistleblower) praised its privacy and security at a conference, it currently has more than 10 million users and exponential growth thanks to

recommendations from various experts

and well-

known figures such as Elon Musk

, the CEO of Tesla Motors.

What information do Whatsapp, Telegram and Signal collect?



  • ​Mobile phone


  • Contact numbers, (both those used by the application and those not)

  • Profile name, photo and status message

  • Email

  • Approximate location (via IP code and phone number).

  • GPS location

  • Device and connection information, model, operating system, browser, language, time zone, IP address and mobile network information (signal strength and provider)

  • Activity: how and when the service is used (including when interacting with a business) and the time, frequency and interaction on activities.

    Log file, diagnostic, error, and performance reports.



  • ​Mobile phone


  • Profile name, photo and description

  • Email (to use two-step verification and account recovery)

  • Numbers of the user's contacts (those who use Telegram and those who do not)

  • GPS location



  • Mobile phone number

Signal is the messaging app that best guarantees the privacy of information.

Photo: Shutterstock

Neither WhatsApp nor Telegram: why is Signal the most secure?

ESET, the company specialized in cybersecurity, reviewed both the functionalities of each application and the practices for the user -group calls, use of emojis-, which are quite similar in the different messaging apps.

It also analyzed the relevant aspects of privacy and protection of the security of messages and data sent.

This is the conclusion they reached: “Each application has advantages and disadvantages.


has extensive communication features and is the most widely used, so it is probably

more practical for daily communications

or with those contacts who do not use another application.

However, by using

it, data and information are being transferred

that are used by the Facebook conglomerate.


Telegram would be somewhere in between Signal and WhatsApp

, with a growing number of users and increasingly popular. Although it belongs to a private company, it

collects much less information

and has the same (or even more) features than WhatsApp ", they explain from ESET.

However, they clarify that if you decide to use it, it is important

 to resort to secret chats for private communications


Finally, he maintained that "


is clearly the application that has the

best security

 features, in addition to guaranteeing the privacy of information. However, it is still an application that is not widely used and many of the contacts may not be using it."

For his part, the computer specialist,

Julio López,

 explained to


 that the difference between WhatsApp, Signal and Telegram is that

Telegram stores all messages in its cloud



WhatsApp and Signal

, the message travels between computers, and

when you delete it, they no longer exist


Therefore, if a person's Telegram is accessed, it will be possible to find all their information, unless we tell them to automatically delete these in a kind of ephemeral messages."

"In security,

Signal has a better privacy scheme

since it doesn't collect the amount of user data that WhatsApp does," López concluded.


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Source: clarin

All news articles on 2023-01-24

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