DisclosureLens
GLOBALMalwareHealthcareHealthcareRansomwareRhysidaRansom DemandedActor NamedData Leak ThreatenedData PublishedHigh

Singing River Health System

bd_dae14b537d1c5662 · schema v1 · pii pii-v1

Severity

High

Discovered

Filed

Sep 10, 2023

To disclose

Affected

Not disclosed

Linked

12 filings

Confidence

50%
Full breach record for Singing River Health System3 incidents on file

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Rhysida 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: HealthcareDiscovered: 2023-09-10

Source: Ransomware.live

Post text · scraped from the leak site

Singing River Health System Singing River Health System is both a mission-driven provider of health services and one of the largest employers on the Mississippi Gulf Coast.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Sep 10, 2023

Claim posted

Corroborated · see linked filings

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

Claim → filing

Compliance clock

Not assessable

This filing is one of 12 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Show 6 more filingsup to 246d gap

Showing first 10 of 11 linked disclosures.

Filing propagation · 11 filings · 7 states

View merged incident ↗

Pattern: first filing Sep 10, last May 13 (ME) — a 246-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 11 — the full spread may be wider.

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.

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 2023-06-05

rhysida

According to ransomware.live, Rhysida is a ransomware-as-a-service (RAAS) group that emerged in May 2023. The group utilizes a namesake ransomware through phishing attacks and Cobalt Strike to breach the targets' networks and deploy their payloads. The group threatens to publicly distribute exfiltrated data if the ransom is not paid, and it's worth mentioning that Rhysida is still in the early stages of development. The ransomware leaves PDF notes in the affected folders, instructing victims to contact the group through its portal, and payment is made via Bitcoin. After encryption, the ransomware appends the extension '.ryshida' to encrypted files. Source: https://github.com/crocodyli/ThreatActors-TTPs

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