DisclosureLens
GLOBALMalwareGovernmentGovernmentRansomwareBraincipherRansom DemandedActor NamedData Leak ThreatenedData PublishedHigh

Oxford County

bd_94320eca2abc575f · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Sep 16, 2025

To disclose

—

Affected

Not disclosed

Confidence

50%
Full breach record for Oxford County →2 incidents on file

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Braincipher 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: Public SectorDiscovered: 2025-10-20
View aggregator listing on ransomware.live

Source: Ransomware.live

Post text · scraped from the leak site

Oxford County represents the best of both worlds: urban communities full of life, entertainment, and commerce; and rural areas that are rich in natural resources, history, and farming communities. Located in the heart of Southwestern Ontario, it is home to several thriving communities. As a municipality, its mission is to provide public services that enhance the quality of life for its citizens.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Sep 16, 2025

Claim posted

—

No filing yet · watching

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

Claim → filing

—

Compliance clock

Not assessable

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

Evidence ladder

Leak-site claimThis record

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

No regulatory filing corroborates this yet — it is the attacker's own assertion. Watch this entity to be notified the moment a filing corroborates or contradicts it.

Source ceiling

  • actor name
  • victim claim
  • ransom/leak status
  • discovery date
  • materiality
  • notification
  • affected count
  • confirmed data types
  • compliance clock

The ✕ fields stay blank until a regulatory filing or victim disclosure lands.

About this groupFirst seen 2024-07-01

braincipher

According to ransomware.live, Brain Cipher emerged in July 2024. Both Windows and Linux variants are available. Brain Cipher using the leaked build of LockBit Black for their operations. The group suspected to have exploited CVE-2023-28252 (Microsoft Windows CLFS Driver Privilege Escalation Vulnerability). The Ransom demand ranges from $150,000 to $1,00,0000. Demand to be paid with Monero (XMR) cryptocurrency. In 2025, they have shifted their new Negotiation portal to new server with vanity TOR Domain starting with 'brain'.

86 tracked hereFull profile →