ISEC was held in Shizuoka industry exchange center in the period of November 21st, 2012 to November 22nd, 2012. This time, it is a joint seminar with Life intelligence and Office Information System (LOIS). The number of presentations was 15 and attendance was about 40. In addition to cryptography and information security, there are also some presentations on the use of life log technology. The conference was very interesting.