Edward Snowden has warned people not to use Google’s new chat app, because it lets the company read everything that they say.

Google has finally released its new chat app after showing it off over the summer. It comes with a robot that watches everything people say and then stores it for later analysis, using that data to improve the app itself.

But that also means that chats are stored on Google’s servers indefinitely, and are able to be read by it. The company had initially indicated that the messages would only be stored temporarily, limiting the possible impact of any data breach and retaining some privacy for users.

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