End-to-end encryption secures messages before they leave a device, preventing them from being read in transit. Increasingly the default protocol for messaging apps, neither governments nor the platforms on which it operates can access unscrambled communications and message content. Some governments have demanded ‘back doors’ for criminal investigations, while others have exploited workarounds to access the encrypted messages of political dissidents.

This talk considers the current public discourse on online surveillance and privacy, and where society might go from here.

A lecture by Victoria Baines recorded on 14 February 2023 at Barnard's Inn Hall, London.

The transcript and downloadable versions of the lecture are available from the Gresham College website: https://www.gresham.ac.uk/watch-now/problem-encryption

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