AstemoData-sharing cloud

1MinorConfirmedAnnounced

A contractor account breach led to data leaving Astemo's cloud, including business contacts of about 350 staff, suppliers and partners. Customer and consumer data were not included.

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
Manufacturing
Operational impact
None

Data involved

DataStatusCountGroupEvidence
NameLeak confirmedabout 350 people—Source(opens in a new tab)
Email addressLeak confirmedabout 350 people—Source(opens in a new tab)
Phone numberLeak confirmedabout 350 people—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. 当社が利用するデーター共有クラウド環境への不正アクセスおよび情報流出についてwww.astemo.com · Published 2026-10-16(opens in a new tab)