What Data Do Popular Messengers Collect About Users?

The Personal Data Protection Agency informs about the data collected by popular messengers about users.

WhatsApp
The following data may be collected and linked to an individual: device identifier, usage data (advertising data), analysis (purchase history, approximate location, phone number, content-related information about actions with other products, advertising data, disruption data, productivity and diagnostic data), product personalization, application functionality (purchase history, payment information, approximate location, email address, phone number, contact book, content-related information about usage, user support details, user and device identifiers, advertising data, disruption data, productivity and diagnostic data).

Signal
This messenger collects the following data that is not linked to the user’s identity: application functionality (phone number).

Telegram
The following data may be collected and linked to an individual: application functionality (name, phone number, contact book, user identifier).

Facebook
The following data may be used to track users across other applications and websites: contact information (physical address, email address, name, phone number), identifiers (device and user).

The following data may be collected and linked to an individual: ads from other places (purchase history, financial information, precise and approximate locations, physical address, email address, name, phone number, contact book, photos, videos, game progression content, search and viewing history, device and user identifiers, data on interactions with other products, advertising data, disruption data, productivity and diagnostic data), also advertising or marketing from the developer, analytics, product personalization, and application functionality.