DisclosureLens
GLOBALMalwareFinancial ServicesFinanceRansomwareMedusaRansom DemandedActor NamedMedium

U S #1364 FEDERAL CREDIT UNION

bd_5b94a6a9378faa3e · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Mar 6, 2024

To disclose

Affected

Not disclosed

Linked

4 filings

Confidence

50%
Full breach record for U S #1364 FEDERAL CREDIT UNION

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Medusa 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: Financial ServicesDiscovered: 2024-03-06

Source: Ransomware.live

Post text · scraped from the leak site

US #1364 Federal Credit Union, founded in 1936, is a local credit union with 5 branches in northwest Indiana. Federal Credit Union corporate office is located in 8400 Broadway, Merrillville, Indiana, 46410, United States and has 73 employees.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Mar 6, 2024

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 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Filing propagation · 4 filings · 3 states

View merged incident ↗
Leak SiteMar 6 · first · this page

Pattern: first filing Mar 6, last Apr 1 (MA) — a 25-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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 2023-01-11

medusa

According to ransomware.live, Medusa is a ransomware-as-a-service operation active since June 2021 that has targeted over 300 victims across critical infrastructure sectors including healthcare, education, legal, and manufacturing using double-extortion, with attacks surging 42% between 2023 and 2024 and a formal CISA advisory issued in early 2025.

565 tracked hereFull profile →