Physicists show that it is impossible to mask quantum information in correlations
(PHYSorg.com Physics)

Information is typically stored in physical systems, such as memory devices. But in a new study, physicists have investigated an alternative way to store and hide information, which is by storing it only in the quantum correlations among two or more systems, rather than in the systems themselves. This idea, which is called `masking,` is a way of making the information inaccessible to everyone, without destroying it (as destroying quantum information is impossible).