# GMO Internet says hackers leaked stolen customer data online

Japanese internet company GMO has confirmed that hackers published stolen customer data online after a breach. The disclosure raises concerns about how much personal information was exposed and how long the data remained accessible. GMO's response and any regulatory scrutiny will be closely watched in Japan's tech sector.

**Importance:** 3/5

## Sources

### Technology
- [TechCrunch](https://techcrunch.com/2026/10/27/japan-internet-giant-gmo-says-hackers-posted-stolen-customer-data/) — Tue, 27 Oct 2026 13:32:57 +0000