Microsoft ends support for Internet Explorer on June 16, 2022.
We recommend using one of the browsers listed below.
Please contact your browser provider for download and installation instructions.
Number of
service suspensions
0
Number of
incidents of
personal information
leaks
1
Stable service
provision rate
100
*You can scroll horizontally
CSR Priority Activities | Medium-term Targets | CSR Quantitative Indicators | KPI | Target Achievement FY | Result (FY) | ||
---|---|---|---|---|---|---|---|
2017 | 2018 | 2019 | |||||
Reinforce information security | Suspension of telecommunications services due to cyber attacks from the outside*1 | Number of service suspensions | 0 | 2020 | -- | -- | 0 |
Number of incidents of personal information leaks due to cyber attacks from the outside*1 | Number of incidents of personal information leaks | 0 | 2020 | -- | -- | 1 | |
Personal information protection | Zero incidents of personal information leaks | Number of incidents of personal information leaks | 0 | -- | 2 | 1 | 1 |
Ensure stability and reliability of telecommunications services*4 | Provide stable telecommunications services free of major communications problems | Stable service provision rate*2 | 99.99% | -- | 100% | 100% | 100% |
Number of major accidents*3 | 0 | -- | 0 | 0 | 0 |
*1Newly established in fiscal 2020
*2[1 - total hours under the impact of major accidents (number of affected users × hours of major accidents) / total hours of major service provision (number of users × 24 hours × 365 days)] × 100%
*3Number of accidents that led to a suspension of telecommunications services or a decline in communications quality that meet the following criteria regarding duration and number of people affected:
・Emergency call services (110, 119, etc.): at least 1 hour affecting at least 30,000 users
・Voice services other than emergency calls: at least 2 hours affecting at least 30,000 users, or at least 1 hour affecting at least 100,000 users
・Internet-related services (free of charge): at least 12 hours affecting at least 1 million users, or at least 24 hours affecting at least 100,000 users
・Other services: more than 2 hours affecting 30,000 users, or more than one hour affecting 1 million users
*4Targets of statistics: Four telecommunications business companies (NTT East, NTT West, NTT Communications, and NTT DOCOMO)
Safety and Security