Cryptography system goes underground (Aug 19) http://physicsweb.org/article/news/8/8/13 A group of scientists in Austria and Germany has installed an optical fibre quantum cryptography system under the streets of Vienna and used it to perform the first quantum secure bank wire transfer (A Poppe et al. 2004 Optics Express 12 3865). The quantum cryptography system consisted of a transmitter (Alice) at Vienna's City Hall and a receiver (Bob) at the headquarters of an Austrian bank. The sites were linked by 1.45 kilometres of single-mode optical fibre. -- Andrew G. Thomas