Mikasa

1MinorPossibleAnnounced

A discarded PC still holding data entered circulation and was once obtained by a third party. Some purchaser details may have leaked.

This incident was imported from a dataset that compiles public announcements, and we are still checking it against the sources. Counts and causes will be updated after the check. Sources are in Japanese.

Cause
Lost or discarded
Operational impact
None

Data involved

DataStatusCountGroupEvidence
NamePossible leakNot disclosed—Source(opens in a new tab)
Postal addressPossible leakNot disclosed—Source(opens in a new tab)
Email addressPossible leakNot disclosed—Source(opens in a new tab)
Phone numberPossible leakNot disclosed—Source(opens in a new tab)
Date of birthPossible leakNot disclosed—Source(opens in a new tab)

Counts are the figures the organization announced. Because the same person may be counted more than once, we do not add the rows together.

What users should do

  • Watch for emails and texts pretending to be the company

General steps based on the type of data involved. Check the organization’s notice or help line to see whether you are affected.

Sources

  1. 個人情報漏えいの可能性のご報告とお詫びmikasasports.co.jp · Published 2026-06-16(opens in a new tab)