Internet and social media companies will be banned from putting customer communications beyond their own reach under new laws to be unveiled on Wednesday.

Companies such as Apple, Google and others will no longer be able to offer encryption so advanced that even they cannot decipher it when asked to, the Daily Telegraph can disclose.
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Ministers have no plans to ban encryption services because they have an important role in the protection of legitimate online activity such as banking and personal data.

But there is concern over some aspects of so-called end-to-end encryption where only the sender and recipient of messages can decipher them.