NTT Smile Energy: Eco Megane intrusion

1. 2026-10-28 20:20

   Signs of unauthorized access from outside were found on the Eco Megane web server. The service screens were stopped at 22:30. [1]

2. 2026-10-29

   The first notice went up on its website at 00:10. At 02:50 it cut traffic to all servers in its cloud environment and shut down the database server holding customer data. [1]

3. 2026-10-30

   It said the investigation found signs of an attack on the database server and that customer data may have leaked. [1]

Names or company names, addresses, phone numbers and email addresses of owners and partner companies, plus login IDs and passwords for the service, may have leaked. The number is being checked. The route and cause are not yet known. [1]

The solar systems themselves keep generating and selling power, but alert emails about faults are not sent and new installations cannot be registered. No restart date has been set. [1]

It is investigating with outside specialists, will contact affected customers by email and other means, and warns of messages posing as the company. [1]