Apple announced a complete overhaul of the security of iMessage, its messaging application used by nearly 1 billion people. All messages exchanged are now protected by a post-quantum encryption protocol, in other words capable of resisting attacks from a quantum computer.
However, the latter does not yet exist. The fear is therefore that valuable data stolen today could be decrypted later, when sufficiently powerful quantum machines are usable. This article is reserved for subscribers. To discover PODCAST - Listen to the latest episode of our Tech Questions series.