What User Data is Collected by Popular Messengers?

 


Recently, numerous users have decided to abandon the messaging platform WhatsApp due to the consequences of changing the privacy policy and switch to the Signal messenger. People were worried that WhatsApp would start transferring data to its parent company Facebook.


Apple has required companies to publish their privacy policies and clearly communicate what they do with user data. As reported by ZDNet, it is now possible to compare what information WhatsApp, Signal, Telegram and Facebook collect.


WhatsApp

The following data can be collected and associated with the identity of the user: identifiers (device ID), usage data (advertising data), analytics (purchase history, approximate geolocation, phone number, various user content, user and device identifiers, interaction with products, advertising data, crash, performance and diagnostics data), product personalization (user-generated content), application functionality (purchase history, payment information, approximate geolocation, email address, phone number, contacts, various user-generated content and user support, user IDs and devices, product interactions, advertising data, crash, performance and diagnostic data).


Signal

The messenger collects the following data, which are not related to the user's personality: application functionality (phone number).


Telegram

The following data can be collected and associated with the identity of the user: application functionality (name, phone number, contacts, user ID).


Facebook

The following data can be used to track a user in applications and websites owned by other companies: contact information (physical address, email address, name, phone number), identifiers (user and device).


Data that can be collected and associated with the identity of the user: third-party advertising (purchase history, financial information, exact and approximate location, physical address, email address, name, phone number, contacts, photo or video, gameplay content, search history and views, user and device IDs, product interaction information, advertising data, crash data, performance and diagnostics data), as well as advertising or marketing from the developer, analytics, product personalization and application functionality.


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