Meta launches Incognito Chat with end-to-end encryption for its AI

Meta has unveiled Incognito Chat, a new mode for its AI assistant in which all conversations are fully private and end-to-end encrypted. According to Mark Zuckerberg, it is the first major AI product where conversations are not logged on servers at all: not for analytics, not for debugging, not for anything else.

How the encryption works

Incognito Chat uses end-to-end encryption, a technology that encrypts your messages from the moment you press send. The text is encrypted on your device and decrypted only inside the AI processor. Meta's servers store only encrypted text, which the company technically cannot read.

This is not just deleting history from the interface. At the infrastructure level, conversations are not saved at all: not as logs, not for model training, and not for toxicity checks. Once the conversation ends, the data is deleted.

How it differs from competitors (and from Meta's past)

Most AI assistants offer incognito modes that work very differently. OpenAI (ChatGPT), Google (Gemini) and Anthropic (Claude) all let you turn off history saving in your account. But at the company level, they still see all questions and answers, and use them for:

• Analyzing answer quality
• Training and fine-tuning models
• Debugging bugs
• Checking for rule violations

Zuckerberg stresses this distinction. In a recent post he wrote:

«Other apps have introduced incognito-style modes, but they can still see the questions coming in and the answers going out.

Incognito Chat with Meta AI is truly private, meaning no one — not even Meta — can read your conversations.»

The paradox: Meta, a company known for collecting user data, now promises to give up access even to other people's questions.

A turn in Meta's policy

This looks ironic given recent history. A few months ago, Meta removed end-to-end encryption from regular messages in Instagram DMs and Messenger. Officially, the reason was fighting crime and protecting children. Privacy activists were horrified.

Now the company is adding E2E encryption to its AI assistant. The signal is mixed: Meta recognizes that people want privacy, but it is unclear what kind of privacy this is, whether it applies against the company itself or only against outside parties.

What this means

Incognito Chat could push competitors toward a more open policy. If users start choosing Incognito Chat not for its UI but for its privacy, the pressure on OpenAI and Google will grow.

For users it is simple: if you worry that your conversation data will be used to train models or sold to advertisers, there is now a button to switch on private mode.

*Meta has been designated an extremist organization and is banned in Russia.