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|CSR Priority Activities||Medium-term Targets||CSR Quantitative Indicators||KPI||Target Achievement FY||Result (FY)|
|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
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