GLOBALMalwareProfessional ServicesProfessional ServicesRansomwareSilentransomgroupRansom DemandedActor NamedMedium
MSK
bd_2bc068363d584980 · schema v1 · pii pii-v1
Full breach record for MSK →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Silentransomgroup 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: 2025-11-25
Source: Ransomware.live
Post text · scraped from the leak site
Established in 1908, Mitchell Silberberg & Knupp (MSK), is a firm that provides services such as Ventu...
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/TVNLQFNpbGVudFJhbnNvbUdyb3Vw
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Nov 25, 2025
- Raw hash
- 4b9b31533871992366485279754317d37b7e664deb0f9cf55a1485c3604ada64
Reporting entity
- Name
- SilentRansomGroupnorm: silentransomgroup
Victim entity
- Name
- MSKnorm: msk
- Industry
- Professional 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· silentransomgroup
- Threat actor
- SilentransomgroupExternalFinancial
Compliance
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.