DisclosureLens
GLOBALMalwareFinancial ServicesFinanceRansomwareShinyhuntersRansom DemandedActor NamedMedium

TransUnion

bd_12f1bc01ded96f42 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Jun 28, 2025

To disclose

Affected

Not disclosed

Linked

5 filings

Confidence

50%
Full breach record for TransUnion13 incidents on file

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Shinyhunters 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: 2025-10-03

Source: Ransomware.live

Post text · scraped from the leak site

TransUnion is a global credit reporting agency that provides credit information and analytics services to businesses and individual consumers. It collects and aggregates information on over a billion individual consumers in over thirty countries including "Big Three" credit-reporting agencies in the United States. The data they handle includes credit history, credit scoring, and personal information protection services.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Jun 28, 2025

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 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Filing propagation · 5 filings · 4 states

View merged incident ↗

Pattern: first filing Jun 28, last Sep 4 (MA) — a 68-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 2024-04-23

shinyhunters

According to ransomware.live, ShinyHunters is a financially motivated data-theft and extortion group active since 2020, responsible for high-profile breaches including Ticketmaster (via Snowflake) and PowerSchool; by 2025 they launched a RaaS offering called "shinysp1d3r," and in August 2025 French authorities arrested four members.

166 tracked hereFull profile →