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Listed on a ransomware leak site

Holcim

holcim.com

Holcim was listed on the Emperador leak site on Oct 31, 2026. Information as of Oct 31, 2026.

Country: SwitzerlandIndustry: Construction
Updated continuously ยท figures as of Oct 31, 2026
Claimed by
Emperador
First listed
Oct 31, 2026
Claims recorded
1

Leak-Site Claim.

EmperadorConfirmed claim
Posted on the leak site
Oct 31, 2026
Collected by Brandefense
Oct 31, 2026
Data claimed
Not stated
Leak-site post text, written by the group
Holcim is a global building-materials and building-solutions company founded in Switzerland in 1912. It provides cement, aggregates, ready-mix concrete and high-value building solutions for infrastructure, buildings and industrial applications. Holcim focuses on sustainable construction through solutions such as ECOPact, ECOPlanet and ECOCycle. In 2025, the company generated CHF 15.7 billion in net sales and operated across 43 markets. [Sector: Manufacturing, Construction]

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Figures as of Oct 31, 2026. Confirmed leak-site claims collected by Brandefense technologies and validated by Brandefense analysts.

Listed on a leak site means a ransomware group has claimed the company; it is not a confirmed breach. To request a correction or removal, contact Brandefense.