DisclosureLens
GLOBALMalwareRetail & ConsumerRetailRansomwareBlack BastaRansom DemandedActor NamedMedium

Marshallamps

bd_7d3462b458efeead · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Mar 17, 2023

To disclose

Affected

Not disclosed

Confidence

50%
Full breach record for Marshallamps

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: Consumer ServicesDiscovered: 2023-03-17

Source: Ransomware.live

Post text · scraped from the leak site

Marshall has been celebrated by some of the world’s greatest bands and musicians including: Jimi Hendrix, Eric Clapton, Slash, Oasis, Muse, Gorillaz and Bring Me The Horizon. We can be seen on tour with artists like Justin Timberlake, Kendrick Lamar and Lana Del Rey. However, none of this would be possible without founder and revolutionary, Jim Marshall OBE and his son Terry.Jim was born in London on 29 July 1923 and as a child he suffered with tubercular bones which meant that he spent much of his early years hospitalised to the age of 13. At his father’s suggestion he took up tap dancing to strengthen the bones in his legs and he soon discovered that he had a flair for music. Subsequently Jim took up the drums and by the late 1930’s he was playing semi-professionally, before going on to teach.After over 20 years gigging on the road on 7 July 1960, Jim opened a family run music store with his wife Violet and son Terry called ‘Jim Marshall and Son’, at 76 Uxbridge Road, Hanwell, London. Today you will find a plaque on the pavement outside to celebrate our humble beginnings.The store sold a variety of musical instruments and attracted many young emerging talents, such as Pete Townshend, Ritchie Blackmore, John Entwistle and Big Jim Sullivan, who were friends of Terry and knew the music store through Jim’s drum students, such as Keith Moon.SITE: https://marshall.com Address Denbigh Rd, Milton KeynesMilton Keynes, MK1 1DQUnited Kingdom

Incident timeline — mostly unverified

? — ?

Breach window unknown

Mar 17, 2023

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.