Last month, Meta told staff their clicks and activity on work devices would begin to be collected as training data for the company’s AI models.
Campaigners such as Big Brother Watch say Meta’s decision could influence the wider social media industry.
Until recently, the spread of E2EE had been the clear direction of travel.
- E2EE is the default on Signal, WhatsApp, Facebook Messenger, Apple’s iMessage and Google Messages
- Telegram offers it as an option, but not by default
- X, formerly Twitter, offers an similar system for direct messages, though critics say it does not meet industry standards
- Snapchat uses it for direct message photos and videos and has previously said it plans to extend it to text
- Discord plans to make voice and video calls end‑to‑end encrypted by default
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