GLOBALMalwareFinancial ServicesFinanceRansomwareRadarRansom DemandedActor NamedMedium
Chek Tan and Company, LLP
bd_d395f3b5a97eeff2 · schema v1 · pii pii-v1
Full breach record for Chek Tan and Company, LLP →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Radar 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: Financial ServicesDiscovered: 2025-10-08
Source: Ransomware.live
Post text · scraped from the leak site
Chek Tan and Company offers accounting, audits, management consulting, IRS representation, and tax management services. San Francisco, California, United States.
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/
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Oct 8, 2025
- Raw hash
- 4053886d82aadd5292ec6b195c24232f0df75ec38bec9dd3a9db3f4abcc4b448
Reporting entity
- Name
- radar
Victim entity
- Name
- Chek Tan and Company, LLPnorm: chek tan and
- Domain
- chektan.com
- Industry
- Financial Servicesllm
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· radar
- Threat actor
- RadarExternalFinancial
Compliance
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.