It is our great pleasure to invite you to join us in Rome, Italy, for the 7th IEEE International Workshop on Information Forensics and Security (WIFS) 2015 , to be held from the 16th to the 19th of November 2015. The workshop will be hosted by Roma Tre University. WIFS is the annual flagship workshop organized by the Information Forensics and Security (IFS) Technical Committee of the IEEE Signal Processing Society. Its major goal is to bring together researchers in the field to foster ideas exchange and to allow cross-fertilization among researchers working in the different areas of information security. WIFS will serve as a powerful instrument for community building. The conference will feature three keynote lectures, up to four tutorials, lectures and poster sessions, demo and ongoing work activities.