Your personal data could soon be stored not on a phone or server but locked inside a molecule so tiny it's invisible to the naked eye. Researchers have cracked the code on storing digital information in synthetic molecules called polymers - long chains of anything from plastic to protein made from building blocks known as monomers. Each monomer sends out a unique electrical signal that a special electrochemical technique can decode, turning these tiny sequences into passwords or secret messages. This game-changing technology could redefine data security without relying on traditional storage... Like this podcast? Please help us by supporting the Naked Scientists