> JapanHacked_
[Contained][Severity: Critical][Intrusion]

NTT SmartConnect: unauthorized access to Smile Server

On 24 July, NTT SmartConnect, an NTT West subsidiary, detected an alert of unauthorized access on two servers of its Smile Server rental hosting (jm9 and jm10.etius.jp), found suspicious files planted, and stopped all services on both servers at 13:00. Customers had to rebuild their websites and email on substitute servers, and the outage lasted weeks. Its findings of 31 August found no sign that customer data was leaked or altered. From September 8 it accepted requests for environments restoring data and settings as of July 24, to be provided after application and safety checks. Data from substitute environments would not be merged automatically; customers needed migration and configuration work.

Disclosed

2026-07-26

Organizations involved

1

Leaked or at risk

Unknown

Downtime

Unknown

Timeline

  1. Detected 2026-07-24
  2. Disclosed 2026-07-26
  3. 2 days

Attack or cause

Method
[Intrusion]
Impact
[Service outage]
Entry point
Unknown

Data exposed or at risk

–

Services hit

Organizations involved

Open in organization search

Sources

  1. [1][Official]「スマイルサーバ」への不正アクセスに関するお詫びとご報告NTT SmartConnect · 2026-08-31
  2. [2][Official]当社サービスへの不正アクセスに関するお詫びと今後の見通しについてNTT SmartConnect · 2026-08-19
  3. [3][Official]jm9およびjm10.etius.jpサーバでの全サービスの一時停止について(2026/8/19更新)NTT SmartConnect
  4. [4][Official]jm9およびjm10.etius.jpをご利用のお客さまへの復旧環境お申し込みのご案内NTT SmartConnect · 2026-09-08