CASE FILE / GMO / 2026-10-29
Onamae.com Desktop Cloud: incident and compensation
Summary of GMO public announcements through October 29, 2026. Unverified individual claims are excluded.
- October 21, 2026: Service shutdown and first public incident notice.
- October 24, 2026: GMO announced a ¥5,000 goodwill payment to current users and conditional reimbursement of realized losses from unauthorized trades.
- October 27, 2026: The 12th update announced additional goodwill payments depending on the type of information exposed.
- October 28, 2026: Report 13 announced the takedown of an attacker-linked domain. Report 14 recorded 113 submissions to the bounty tip line (6 p.m. JST in GMO Internet’s version).
- October 29, 2026: Report 15 stated that the bounty tip line had received 270 submissions by 11:30 a.m. JST. GMO said it planned to provide investigative leads to police that day; submission and identification of a suspect were not confirmed.
Primary sources (official GMO statements)
- 2026-10-24 — GMO Internet, 4th report ↗
- 2026-10-27 — GMO Internet, 12th report ↗
- 2026-10-28 — GMO Internet, 13th report ↗
- 2026-10-28 — GMO Internet, 14th report ↗
- 2026-10-28 — Onamae.com, 14th report (5-hour snapshot) ↗
- 2026-10-29 — GMO Internet, 15th report (270 tips at 11:30 JST; police submission planned) ↗
Anonymous impact survey
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