The defence ministry said that this form of communication can support applications such as long-distance quantum key ...

Physics gets in the way ... and other countries, intercept above the atmosphere and are unable to engage hypersonic weapons flying in at lower altitudes. Hypersonic gliders with sufficient ...

In a scenario it calls ‘intercept now, decrypt later’, a nefarious attacker could start intercepting and storing financial transactions, personal e-mails and other sensitive encrypted traffic ...

but the laws of physics make it extremely challenging — and create all of these constraints on how difficult it is to intercept it," James Wells, a professor of physics at the University of ...