Signal on Android

Since the messenger was developed for the purpose of private correspondence, the functionality of the service is somewhat different from that offered by Telegam, WhatsApp or Viber, focused on the commercialization of options.

Classified conversations

Correspondence with contacts and group chats are protected by enforced End-to-End encryption without server involvement. This means that the forwarded message is sent already in a classified form and no unauthorized user, except for the sender and the recipient, can read it. This requires the use of the device itself. Software developers are also deprived of the ability to view other people's data via servers.

Restricted access

Privacy settings are represented by a screen lock feature that includes a PIN or fingerprint verification. If your phone is stolen, attackers won't be able to read your chats.

Self-deleting messages

Chat history in individual and group chats can be set to auto-clear. Messages will be deleted immediately after reading or after a specified time - 5, 10 seconds, 24 hours, or a week.

Blocking screenshots

The messenger has the ability to prohibit other users to take screenshots of correspondence. By activating the option, chatters can be sure that information will not get to unauthorized persons without their consent.

Blurring faces in photos

The option allows you to disguise the contents of a frame to be sent while respecting privacy. This function eliminates the possibility of face detection software scanning the photo when sending the file. In addition, you can use the built-in photo editor to attach the message to the post.

Unreadable data entry

To prevent data sent in text form from being stolen, Signal's settings include an "incognito" keypad. In addition to privacy, the option involves denying third-party software access to analyze the behavioral data of smartphone owners.

Contact verification

To be sure that the dialogue is with the right person, users use the view security number function. A value is assigned to each caller for each session or device. To verify that the connection is secure and that there are no unauthorized people in the conversation, the user sends a personal security code, and the opponent checks them against what is shown in the online profile of the interlocutor.

Secure authorization

Messenger is cross-platform and can be used on multiple devices with different operating systems. Authorization in Signal on a computer or another device is not available without a cell phone. The user has to enter a QR code by scanning it from the PC monitor. Such binding of profile to external devices excludes unauthorized access of third parties in case your phone is stolen. Simultaneous use of 1 account on 2 gadgets is excluded.

For communication in Signal user needs permanent access to the phone number, indicated at registration. This acts as the only identifier of the network participant and is used for data security checks. Given the class of data encryption, Signal refers to fully private messengers. Installing the program gives the user additional options for secure communication.