• Smart Media Journal
• /
• v.9 no.4
• /
• pp.52-59
• /
• 2020

This second survey, which collected 2392 disclosing grades data for 2012~ 2017, nearly twice the first survey, was conducted to supplement the result of the first survey on the reuse of 4-digit passcodes(PCs) data. In addition of second survey, we found that the more number of used PCs, the higher reuse rate, up to 4 numbers of PCs were used for reusing and there may be personal differences even on the single site. The results of this paper that were not available in the first survey were close to the those of foreign research on the reuse of passwords using a mixture of numbers, letters and special characters. This second survey provided an inference that an opportunity to indirectly approach the domestic situation of re-using password, where data collection is impossible and that domestic regulation such as periodic change of password may increase the re-using password.

• Journal of the Society of Disaster Information
• /
• v.19 no.3
• /
• pp.554-561
• /
• 2023

Purpose: To urge the necessity of disclosure by identifying the relationship between the disclosure status of greenhouse gas emissions from domestic business sites and other indirect emissions to total emissions. Method: The 2021 emission data disclosed in the Carbon Disclosure Project (CDP) was collected by industry and emission category for comparative analysis. Result: The more companies that calculated and disclosed emissions by category within Scope 3, the more active they were in responding to or disclosing evaluation factors other than disclosure of emissions, and those companies were able to obtain higher grades in CDP and ESG evaluations. The number of Scope 3 calculations and disclosures was found to be high. In addition, there was a significant difference in the correlation between the number of Scope 3 disclosures by industry and the share of each scope out of the total in some manufacturing industries. Conclusion: As the number of Scope 3 disclosures, corporate ratings, and total emissions are proportional, it was confirmed that the higher the number of Scope 3 disclosures and GHG emissions, the higher the level of Scope 3 management. Based on Scope 3 emissions calculation and disclosure, effective emissions management and reduction activities are required.