DDoS attack disrupts Japan's NTT Docomo for around 12 hours
Japan's NTT Docomo was hit by a DDoS attack on 2 January 2025, disrupting access to its website, portal and some payment services for around 12 hours. Core mobile services were not affected.
Key facts
- Affected organisation
- NTT Docomo
- Incident type
- DDoS
- Occurred / detected
- 2025-01-02
- Scale of damage
- Access to website, portal and some payment services disrupted for around 12 hours
- Cause / method
- DDoS attack
- Location
- Japan
Timeline
- NTT Docomo was hit by a DDoS attack that disrupted access to its website, portal and some payment services.
- It emerged that the disruption lasted around 12 hours and that core mobile services were not affected.
2 related reports
Other incidents at NTT Docomo
Unauthorised access at NTT Docomo exposes customer data for up to 294,839 lines
Impact: Customer information associated with up to 294,839 lines exposed
Unauthorised external access to NTT Docomo's online shop and My docomo exposed customer information associated with up to 294,839 lines. The attacker exploited the way multiple systems were interconnected to query and obtain information in bulk, with the exposed data including names, addresses, dates of birth, telephone numbers, identity document numbers, contract information and some bank account information. The company suspended the affected services on 5 November, carried out an investigation and recovery work, and considered compensation payments to victims. The ahamo website and some My docomo services resumed on 9 November.
Related reports: 33 · last report →
The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organisation’s official statements for accurate details.