BBC News reported last week that researchers at the University of Cambridge had uncovered simple methods of breaching tamper-evident printed PIN numbers such as scanning letters and using Photoshop, or even just holding an envelope up to a light
and viewing it with the naked eye.

But Terrye Jones, managing director of KCS Print, based in Launceston, Cornwall, which produces PIN mailers for Lloyds TSB and HSBC, was sceptical that much fraud was perpetuated this way. She also questioned why the research, which was published last November, was being dug over now.

KCS Print uses Hydalam, which was one of the PIN print processes tested by the Cambridge University team.

Story by Barney Cox