On February 21, 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…
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But if the quantum machines being developed around the world are not yet technologically mature enough, the threat of access to data protected by existing encryption systems is, on the other hand, already there. “
Today, certain government agencies and private actors capture and store encrypted communications
,” explains Jean-Christophe Deneuville, teacher-researcher at Enac, University of Toulouse.
The fear is therefore that valuable data stolen today could be decrypted later, when sufficiently powerful quantum machines are usable
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