If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -In organizations today, protecting information and computer assets from attacks or disaster has become one of the top managerial issues. The purpose of this paper is to propose and empirically test a comprehensive model of computer security behaviors of individuals in the workplace. Design/methodology/approach -The model was developed based on the reference disciplines of the theory of reasoned action, moral obligation, protection motivation theory (PMT), and organizational context factors. The measurements for the variables in the model, including computer security behavioral intention were adapted from prior studies, and their reliability and validity were verified by a confirmatory factor analysis. The model was empirically analyzed by structural equation modeling with respect to data from 162 employees in a number of organizations in Korea. Findings -The results indicate that moral obligation and organizational norms along with attitude toward computer security behavior have significant impacts on employees' behavioral intentions of computer security. In addition, perceived threat severity, response efficacy, and self-efficacy, which are drawn from the PMT, have significant impacts on employee attitude, whereas security policy has significant impacts on the organizational norms. Originality/value -The paper provides a useful model for analyzing employees' computer security behaviors in the workplace. Also, the paper reveals that moral obligation as well as attitude toward computer security behavior was a significant predictor of an individual employee's intention to practice computer security behavior.

In order for natural interaction in Augmented Reality (AR) to become widely adopted, the techniques used need to be shown to support precise interaction, and the gestures used proven to be easy to understand and perform. Recent research has explored free-hand gesture interaction with AR interfaces, but there have been few formal evaluations conducted with such systems.In this paper we introduce and evaluate two natural interaction techniques: the free-hand gesture based Grasp-Shell, which provides direct physical manipulation of virtual content; and the multi-modal Gesture-Speech, which combines speech and gesture for indirect natural interaction. These techniques support object selection, 6 degree of freedom movement, uniform scaling, as well as physics-based interaction such as pushing and flinging.We conducted a study evaluating and comparing Grasp-Shell and Gesture-Speech for fundamental manipulation tasks. The results show that Grasp-Shell outperforms Gesture-Speech in both efficiency and user preference for translation and rotation tasks, while Gesture-Speech is better for uniform scaling. They could be good complementary interaction methods in a physics-enabled AR environment, as this combination potentially provides both control and interactivity in one interface. We conclude by discussing implications and future directions of this research.

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The IPv6 over low-power wireless personal area network (6LoWPAN) typically includes devices that work together to connect the physical environment to real-world applications, e.g., wireless sensors. However, since, in some cases, security may be requested at the application layer as need, and then, security problems should be identified such as security threats model, threats analysis, attack scenarios, and light-weight security algorithms etc. This paper presents an analysis of security threats to the 6LoWPAN adaptation layer from the point of view of IP packet fragmentation attacks. And to protect replay attacks being occurred by IP packet fragmentations and to guarantee packet freshness, we also propose a protection mechanism against packet fragmentation attacks. The mechanism uses Timestamp and Nonce options that are added to the fragmented packets at the 6LoWPAN adaptation layer.

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