DisclosureLens
GLOBALMalwareProfessional ServicesProfessional ServicesRansomwareDragonforceRansom DemandedActor NamedMedium

Asserson

bd_57b6571e089d09c1 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Sep 26, 2025

To disclose

Affected

Not disclosed

Confidence

50%
Full breach record for Asserson

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group DragonForce 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: 2025-09-27

Source: Ransomware.live

Post text · scraped from the leak site

(Clients, counterparties, lobbying, deceit, intimidation, pressure on journalists, and other tactics, as revealed in over half a million documents) Asserson Law Offices is a dynamic and creative law firm based in the UK, specializing in various practice areas including dispute resolution, corporate law, and real estate. They aim to support a diverse client base including startups and established businesses in navigating legal challenges in areas such as banking finance and employment law. The firm is recognized for its innovative approach to legal services and commitment to providing effective solutions. Asserson Law Offices is regulated by the Solicitors Regulation Authority, emphasizing their adherence to professional standards.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Sep 26, 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 2022-10-20

dragonforce

According to ransomware.live, DragonForce is a major ransomware-as-a-service operation first observed in August 2023 that launched a formal affiliate program offering 80% revenue share, then rebranded as a "ransomware cartel" in 2025, gaining notoriety for high-profile attacks on UK retailers Marks & Spencer, Co-op, and Harrods.

681 tracked hereFull profile →