The application is very secure: some applications like Signal offer services that encrypt data and information, such as the WhatsApp services of Facebook and the messaging service from Apple, while the rest of the applications such as the Messenger service from Facebook or the messaging application Hangouts from Google do not perform the necessary encryption operations, which makes the data The user and his privacy are at risk, but the Signal application surpasses these applications by encrypting all the information related to the messages such as the identity of the person who sent it, meaning that the content of the message, its sender and all information about it are completely safe and no one can access it except to whom the message was sent.
Signal is an open-source application. The fact that the Signal application is open source software encourages the user to trust all the security features that the developer claims, as the nature of the Signal application allows anyone in the world with a sufficient technological background to enter the source of the application, and to ensure the degree of security and encryption that it applies. On the data sent through it.
And through a comparison between Signal and WhatsApp, we also notice that Signal is a non-profit company (a non-profit organization), where the developers of the application say that their goal in creating it is to secure the privacy of users primarily from hackers or companies that want to access this data. And information.
Self-delete messages: The Signal application provides a feature that allows the user to completely delete a message or group of messages five minutes after it reaches the recipient's mailbox. The receiving party cannot retrieve the deleted message automatically even if he cannot read it within the five minutes. This feature is essential. When making a comparison between Signal and WhatsApp.
Screen security feature: the user can activate this feature from the application settings, this feature prevents the rest of the applications installed on the device from entering the application to take a picture of the screen that may include parts of conversations or personal information of the user, to provide the greatest possible protection for him.
Encryption of voice communications: It is one of the important features when comparing Signal with WhatsApp, as the Signal application, when making any voice phone call, generates a random number that no one can know, and then this code is converted into two words that appear on the two mobile screens of the two parties to the call to sign By making sure that the two words match each other, if the two words match, then communication is safe, and if they do not match, it is usually best to call again to get two new words.