The 5th International Conference on Artificial Intelligence and Security (ICAIS 2019), formerly called the International Conference on Cloud Computing and Security (ICCCS), will be held in July 26-28, 2019 at New York University, New York, USA. Over the past four years, ICCCS has become a leading conference on artificial intelligence and security, garnering comprehensive coverage in June 2018 by CCTV 4 China News. ICAIS is a highly selective and premier international forum on computer science and engineering research. In addition to the main sessions, the conference will include workshops, panels, demonstrations, and exhibits. The organizing committee is excited to invite you to take part in ICAIS 2019, to discuss issues at the technological frontier of society today as well as interdisciplinary technological trends.