VULNpocalypse
LowBreach / campaignMonitoring

Rhysida ransomware group claims attack on M.C.S. Steel, unconfirmed

RansomLook reports the Rhysida group listed M.C.S. Steel on its leak site; the victim has not confirmed, so monitor official statements.

Published
Exploitation
No confirmation. The only source is a leak-site claim tracked by RansomLook; the victim has not confirmed it.

What happened

According to RansomLook, the Rhysida ransomware group claims M.C.S. Steel Public Company Limited on its leak site. The tracker’s headline is dated 2026-11-09 RansomLook: M.C.S. Steel Public Company Limited: claimed by the rhysida ransomware group on its leak site.

This advisory rests on that headline alone. The full article could not be reviewed, so no further detail is available. A leak-site listing is a claim by the group, not proof of an intrusion.

Not confirmed:

  • Whether M.C.S. Steel has confirmed any incident. No source we could read says it has.
  • Whether any data was taken or systems were encrypted.
  • The volume or type of data involved.
  • How an attacker would have gained access.
  • Any independent verification of the claim.

Am I affected?

Not confirmed. The headline names only M.C.S. Steel Public Company Limited as the listed organisation. It does not say that customers, partners or other companies are affected, and no source we could read supports that.

What to do now

  1. Check M.C.S. Steel’s official channels for a statement. None was available in the sources reviewed.
  2. If you do business with the company, follow any guidance it issues directly to you.
  3. Verify through known contacts any unusual payment, banking-detail or credential request that appears to come from the company.
  4. Revisit this advisory if the company or an independent outlet confirms or denies the claim.

Sources