ETtech Explainer: How does Meta’s decision to kill end-to-end encryption on Instagram affect you?
End-to-end encryption is a communications process that ensures that only the sender and recipient can access the contents of a message. The broader push for encryption within Meta dates back to 2016, when WhatsApp began rolling out end-to-end encr...

What is end to end encryption (E2EE)?
End-to-end encryption is a communications process that ensures that only the sender and recipient can access the contents of a message. The broader push for encryption within Meta dates back to 2016, when WhatsApp began rolling out end-to-end encryption across its services.
For Meta CEO Mark Zuckerberg, encryption became a key feature in 2019, and a driver of WhatsApp’s growth, alongside a longer-term vision of integrating private communication across WhatsApp, Instagram, and Facebook Messenger.
On Instagram, however, it was introduced in late 2023 as an opt-in feature, then referred to as “Secret Chats,” rather than being enabled by default. As a result, adoption remained limited, with most users continuing to rely on standard direct messages.
How does E2EE work?
The E2EE ecosystem relies on the Signal Protocol, an open-source cryptographic protocol developed in 2013. It enables secure messaging, voice and video communication through mechanisms such as the Double Ratchet algorithm, which ensures forward secrecy and post-compromise security by updating encryption keys for every message. In simple terms, under this protocol, the app keeps on changing the lock on your messages all the time. So even if someone somehow gets access to one key, they will not be able to read your past messages, or future messages.
Also Read: Meta executive warned Facebook Messenger encryption plan was 'so irresponsible', shows court filing
What are the possible reasons for this move?
Encrypted chats limit certain user features and make moderation significantly harder. Since platforms cannot access encrypted content, detecting scams, harassment, or illegal activity becomes more difficult.
Against this backdrop, Meta is increasingly concentrating end-to-end encryption within WhatsApp, while positioning Instagram as a social and content-driven platform. Unlike WhatsApp’s focus on private messaging, Instagram’s core model revolves around social discovery, creator content, and advertising.
How does this affect users?
Privacy advocates caution that weakening encryption could create systemic risks. End-to-end encryption protects not just personal messages but also the communications of journalists, activists, businesses, and governments. Backdoors or special access for authorities could be exploited by hackers or hostile actors, weakening the overall security of these systems.
Are there other platforms that do not offer E2EE? What is the status of chats on other Meta apps?
India’s homegrown messaging app Arattai added end-to-end encryption, after criticism for lacking it, last November. Meanwhile popular messaging apps such as Signal, WhatsApp, Facebook Messenger, iMessage, Telegram, Matrix, and Keybase offer this protection by default. Platforms such as Telegram, however, do not use it as the default mode.
Where does India stand in this picture? What should you do now?
India currently has close to 500 million users on both WhatsApp and Instagram. Users with affected chats will receive instructions to download their messages and media, and may need to update the app to access these options.
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