ESPEC

1MinorPossibleAnnounced

One employee email account was accessed without permission and sent suspicious emails. Partner email addresses and signature details may have been viewed. Brute-force attack is the suspected cause.

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
Email account compromise
Sector
Manufacturing
Operational impact
None

Data involved

DataStatusCountGroupEvidence
Email addressPossible leakNot disclosed—Source(opens in a new tab)
NamePossible leakNot disclosed—Source(opens in a new tab)
CredentialsPossible 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

  • Change your password
  • Change the password on other services where you reused it
  • 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. 個人情報漏えいのおそれに関するお知らせとお詫びwww.espec.co.jp · Published 2026-04-21(opens in a new tab)