DisclosureLens
GLOBALMalwareGovernmentGovernmentRansomwareBlack BastaRansom DemandedActor NamedMedium

Southern Water

bd_ba5241a866dded0d · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Jan 22, 2024

To disclose

—

Affected

Not disclosed

Confidence

50%
Full breach record for Southern Water →

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: Public SectorDiscovered: 2024-01-22
View aggregator listing on ransomware.live

Source: Ransomware.live

Post text · scraped from the leak site

We provide water for life to enhance health and wellbeing, protect and improve the environment and sustain the economy. We provide essential water services to 2.5 million customers and wastewater services to more than 4.7 million customers across Sussex, Kent, Hampshire and the Isle of Wight.SITE: www.southernwater.co.uk Address : Southern Water Services Limited, Southern House, Yeoman Road, Worthing, West Sussex, BN13 3NX.ALL DATA SITE: 750gb 1. Users personal documents and folders 2. Corporate documents and etc...

Incident timeline — mostly unverified

? — ?

Breach window unknown

Jan 22, 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.