Beyond the Era of Convergence
Edited by Hitoshi Mitomo, Hidenori Fuke and Erik Bohlin
Chapter 9: Industry-specific patterns inherent in personal information leakage incidents in Japan: analyses of an incident database
In 2005, Japan enacted the “Act for the Protection of Personal Information” to comply with an EU Directive that requested that Japan maintain an adequate level of personal data protection. Prior to that time, a series of incidents related to personal information leakage caused serious social concerns. This study examines a sample comprised of over 5,200 incidents that occurred between January 2000 and December 2011. Specific attention was focused on the differences that existed among the types of industries that experienced personal information leakages. In addition to the performance of a primary data analysis that relied on cross-tabulation, this study extracted a pattern of incidents inherent to each industry by the use of correspondence analysis. To identify additional details, the relationships that occurred among each industry sector were determined: (1) causes of incidents, (2) number of victims of leaked personal information and (3) recurrences of incidents. In comparison with the authors’ previous studies, this current study examined the actual conditions related to recent personal information leakages. Among a number of industry sectors, “financial and insurance” and “medical institution” revealed the need for particular focus on the management of personal information because “financial and insurance” demonstrated a pattern of large number of victims of leaked personal information. This industry primarily relies on “credit information.” “Medical institutions” primarily relies on “sensitive information.” In addition, the results revealed that intentionally caused incidents tended to involve the leakage of large amounts of personal information. The results of this study can be utilised to devise efficient security measures. They might also contribute to further refinement, improvement or revision of current laws.
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