Dr. Adam Wojtowicz paticipated in a conference „CommonSign Warsaw 2013” – Electronic Signature Interoperability Summit, which took place in Warsaw on 23 and 24 October 2013. During the conference Dr. Wójtowicz gave an invited lecture entitled “Authentication in the New World of Mobile Devices". He participated also in a panel discussion "Implementing Electronic Signature as a Tool of Nation-Wide Use - Why Does It Take So Long?".