Trojan horse attacks threaten the security of practical quantum cryptography

Video abstract for the article ‘Trojan-horse attacks threaten the security of practical quantum cryptography‘ by Nitin Jain, Elena Anisimova, Imran Khan, Vadim Makarov, Christoph Marquardt and Gerd Leuchs (Nitin Jain et al 2014 New J. Phys. 16 123030).