GLOBALMalwareProfessional ServicesProfessional ServicesRansomwareRhysidaRansom DemandedActor NamedMedium
Sibbalds
bd_cdec75e3efec2ed5 · schema v1 · pii pii-v1
Full breach record for Sibbalds →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Rhysida 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: Business ServicesDiscovered: 2025-10-16
Source: Ransomware.live
Post text · scraped from the leak site
Sibbalds Sibbalds Chartered Accountants, based in Derby, specializes in providing a wide range of accountancy services to owner-managed businesses across England. More
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 16, 2025
- Raw hash
- ddc628c68687b3fdbcc85d8c4ba5a06c59edce79101fe31fe3c18be76e97086c
Reporting entity
- Name
- rhysida
Victim entity
- Name
- Sibbaldsnorm: sibbalds
- Domain
- sibbalds.co.uk
- Industry
- Professional Services
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· rhysida
- Threat actor
- RhysidaExternalFinancial
Compliance
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.