GLOBALMalwareConstructionRansomwareMedusaRansom DemandedActor NamedData Leak ThreatenedData PublishedHigh

Team Group

bd_b53a04903127fcd7 · schema v1 · pii pii-v1

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Medusa 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.

Group activity: ConstructionDiscovered: 2025-09-03

View aggregator listing on ransomware.live

Source: Ransomware.live

Post text · scraped from the leak site

TEAM GROUP is one of the leading integrated consulting firms in Thailand and region with more than 40 years of experience in comprehensive consulting services in the areas of Building and Infrastructure, Water Resources, Environmental Management, Transport and Logistics, as well as Power and Energy. TEAM GROUP has accomplished more than 2,500 projects in Thailand and overseas including the Xayaburi Hydroelectric Power Project, Suvarnabhumi Airport, Government Complex, and MRT Blue Line Extension. company is headquartered in TEAM Building, 151 Nuan Chan Road, Nuan Chan, Bueng Kum, Bangkok 10230 Thailand 1028 Employees. The total amount of data leakage is 2.25 TB

Tracked as a single-filing incident — the only disclosure on record for this event so far.Unverified claimView incident

No regulatory filing corroborates this yet. If an SEC 8-K, state-AG notice, or victim statement lands, DisclosureLens will merge it into an incident and link it here.

Source provenance

Source URL: https://www.ransomware.live/id/VEVBTSBHUk9VUEBtZWR1c2E=
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 1, 2025
Raw hash: 03106655da2756c840605bd5b7aec6ac2725246d62422f5c85451c26b25ff0d9

Reporting entity

Name: medusa

Victim entity

Name: Team Group
norm: team group
Domain: teamgroup.co.th
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· medusa
Threat actor: MedusaExternalFinancial

Compliance

Compliance flags: — (clock not assessable for this source)

Extraction provenance

Status: No extraction artifact recorded for this disclosure.