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Can readability on small screens be improved by using adaptive Rapid Serial Visual Presentation (RSVP) that adapts the presentation speed to the characteristics of the text instead of keeping it fixed? In this paper we introduce Adaptive RSVP, describe the design of a prototype on a mobile device, and report findings from a usability evaluation where the ability to read long and short texts was assessed. In a latin-square balanced repeated-measurement experiment, employing 16 subjects, two variants of Adaptive RSVP were benchmarked against Fixed RSVP and traditional text presentation. For short texts, all RSVP formats increased reading speed by 33% with no significant differences in comprehension or task load. For long texts, no differences were found in reading speed or comprehension, but all RSVP formats increased task load significantly. Nevertheless, Adaptive RSVP decreased task load ratings for most factors compared to Fixed RSVP. Causes, implications, and effects of these findings are discussed. q

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Abstract. This paper discusses the result of two case studies performed in a large international company to test the use of chatbots for internal security training. The first study targeted 26 end users in the company while the second study examined 80 security specialists. From a quantitative analytical perspective there does not appears to be any significant findings when chatbots are used for security training. However there does appear to be qualitative data that suggest that the attitudes of the respondents appear to be more positive to security when chatbots are used than with the current traditional e-learning security training courses at the company.Keywords: Security Awareness Training, Chatbots. IntroductionAt the first WISE conference in 1999 Kowalski et al [1] presented in the paper The Manual is the Message observations that employees in a company that received security policy and instruction via a paper based medium differed in attitude to security to those that received the same security policy and instruction via an internal webpage. Those that received the information via a paper medium appeared to have a better security attitude than those that received the same information via a web based medium. In this paper were discuss two new case studies [2,3] were the medium of communication is the independent variable and the knowledge, attitude and behavior the dependent variable. The paper is divided into five sections. After this short introduction we discuss the current state of security awareness training in corporations. In section two we review the technology of chatbots and how this technology was applied in the case studies. The design and result of these two case studies are presented in section four. We conclude with a general discussion on the potential of chatbots in security education.

Can readability on small screens be improved by using adaptive Rapid Serial Visual Presentation (RSVP) that adapts the presentation speed to the characteristics of the text instead of keeping it fixed? In this paper we introduce Adaptive RSVP, describe the design of a prototype on a mobile device, and report findings from a usability evaluation where the ability to read long and short texts was assessed. In a latin-square balanced repeated-measurement experiment, employing 16 subjects, two variants of Adaptive RSVP were benchmarked against Fixed RSVP and traditional text presentation. For short texts, all RSVP formats increased reading speed by 33% with no significant differences in comprehension or task load. For long texts, no differences were found in reading speed or comprehension, but all RSVP formats increased task load significantly. Nevertheless, Adaptive RSVP decreased task load ratings for most factors compared to Fixed RSVP. Causes, implications, and effects of these findings are discussed. q