Pervasive computing Environments (PE) present specific peculiarities with respect to aspects like security and multimodality. As a matter of fact, the accessibility level of a virtual environment can definitively be improved by natural interfaces and multimodal interaction systems, which offer users the freedom to select from multiple modes of interaction with services and permit to break down barriers about human-computer interaction making communication intuitive and spontaneous. On the other hand, while enlarging and easing the ways to access to the environment, security threads arise and the environment must be properly equipped in order to protect itself from malicious attacks and/or from wrong actions performed by inexpert users. SMPE-14 is the next event in a series of highly successful International Symposium on Security and Multimodality in Pervasive Environments (SMPE), and will be held in conjunction with AINA-14 in Victoria, Canada, May 13 - 16, 2014. SMPE 2014 workshop is the international symposium with the 8 years history about Security and Multimodality in Pervasive Environments: SMPE-13(In conjunction with AINA-13, Barcelona, Spain, March 25-28, 2013),SMPE-12(In conjunction with AINA-12, Fukuoka, Japan, March 26-29, 2012), SMPE-11(In conjunction with AINA-11, Biopolis, Singapore, March 22 - 25, 2011), SMPE-10(In conjunction with AINA-10, Perth, Australia, 20-23 April, 2010), SMPE-09 (University of Bradford, Bradford, UK, May, 2009), SMPE-08 (Trinity College Dublin, Ireland, July 2008), SMPE-07 (Nice, France, September 2007). In addition, it is strongly supported by FTRA (Future Technology Research Association International) which is one of the most powerful research associations in Korea.