DisclosureLens
GLOBALMalwareAgriculture & FoodProfessional ServicesRansomwareBlack BastaRansom DemandedActor NamedMedium

Graham + Sibbald

bd_88fe2042640e7403 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Oct 24, 2024

To disclose

—

Affected

Not disclosed

Confidence

50%

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Black Basta 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: Agriculture and Food ProductionDiscovered: 2024-12-04
View aggregator listing on ransomware.live

Source: Ransomware.live

Post text · scraped from the leak site

Graham + Sibbald is one of the UK’s leading property consultancy services. Our success is built upon how we deliver our service; it is a unique combination of being both professional and personable. Graham + Sibbald has a long-standing history of supporting and delivering community benefits. This ranges from offering work placements/shadowing experiences for secondary school children across our office network, working in partnership with local schools by surveyor participation and attendance at career fairs/ STEM practical workshops to supporting Modern and Graduate Apprentices through our dedicated Career Programmes.SITE: www.g-s.co.uk Address : 3 Charlotte Street, Perth Perthshire, PH1 5LW United KingdomTEL#: +44 1738 445733ALL DATA SIZE: ≈1.5tb 1. Personal documents Employees 2. Personal documents Clients 3. Financial data 4. Users data 5. Another Corporate data & etc...

Incident timeline — mostly unverified

? — ?

Breach window unknown

Oct 24, 2024

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.