FullerCorporate site / KOSEN Caravan inquiries

1MinorPossibleAnnounced

An attack on Studio may have leaked inquiry data: 5,948 Japanese, 20 English and 61 KOSEN Caravan entries. Counts are entries, not people. Actual theft is not confirmed.

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
Via a vendor or service
Sector
IT, cloud & telecom
Operational impact
None

Data involved

DataStatusCountGroupEvidence
NamePossible leak6,029 records—Source(opens in a new tab)
Email addressPossible leak6,029 records—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. ノーコードWebサイト制作プラットフォーム「Studio」への不正アクセスに伴う情報流出の可能性に関するお詫びとお願いwww.fuller-inc.com · Published 2026-10-16(opens in a new tab)