With the development of multimedia technology and network technology, multimedia services become more and more popular. In nowadays, multimedia information refers not only to text, image or video but also to flash, web, 3D data, etc. Multimedia information is networked in various modes, e.g., fixed network, wireless network, mobile network, etc. Multimedia information may be generated, processed, transmitted, retrievaled, consumed or shared in various environments. Additionally, security becomes an important issue for information networking. During the past decades, many works have been done in multimedia information networking and security. MINES 2009 aims to provide a platform for worldwide researchers and engineers to exchange the latest research results on multimedia information services, with the focuses on networking and security.