Leighton
bd_faa3c77b0b045253 · schema v1 · pii pii-v1
Full breach record for Leighton →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Worldleaks on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
Source: Ransomware.live
Post text · scraped from the leak site
Leighton is a multinational construction company, based in Australia, known for undertaking major construction, infrastructure, telecommunications and engineering works around the world. It was previously known as Leighton Contractors, prior to its rebranding as CIMIC Group in 2015. Some of its notable projects include large-scale building, infrastructure, and civil & mining projects globally.
Source provenance
- Source URL
- https://worldleaksartrjm3c6vasllvgacbi5u3mgzkluehrzhk2jz4taufuid.onion/companies/1504221778
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Mar 11, 2026
- Raw hash
- e25d4e386c0c27c1e9a5616107d3ad4e851f27c78d29f29b7fdbbcd8d50b1217
Reporting entity
- Name
- worldleaks
Victim entity
- Name
- Leightonnorm: leighton
- Domain
- leighton.com
- Industry
- Construction
What this source establishes
- Source ceiling
- A leak-site claim can't tell us: discovery date · materiality · notification · affected count · confirmed data types · compliance clock. These stay blank until a regulatory filing or victim disclosure lands.
- Attack vector
- Ransomware· worldleaks
- Threat actor
- WorldleaksExternalFinancial
Compliance
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.