DisclosureLens
GLOBALMalwareTechnologyInformationRansomwareInc RansomRansom DemandedActor NamedMedium

OSI SYSTEMS, INC.

bd_0fe82859b7e74031 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Dec 30, 2025

To disclose

Affected

Not disclosed

Linked

10 filings

Confidence

50%
Full breach record for OSI SYSTEMS, INC.

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group INC Ransom 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: TechnologyDiscovered: 2025-12-30

Source: Ransomware.live

Post text · scraped from the leak site

OSI Systems, Inc. Total data in the leak: 250GB Leaked data: - Clients: US Government, US Secret Service, IDSS, GLOBAL AEROSPACE INC, Governments of many countries, Casco Automotive Singapore Pte Ltd, Medtronic, Opengear Inc, Sick Sdn Bhd, ST JOSEPH HOSPITAL, SSM HEALTH CARE CORPORATION, UPMC HEALTH SYSTEM and many other large clients all over the world! - Data Classification: Secret - Projects: Raven, Canopy, SPARK, Lighthouse and many other projects. All project information: development, laboratory testing, drawings, subcontractors, suppliers. - Financial data: Company structure. Company income and expenses, shareholders information, such as BlackRock, Inc. and many other investors. Nasdaq data. Contracts with customers and suppliers, NDA contracts. And a lot of other VERY IMPORTANT information!

Incident timeline — mostly unverified

? — ?

Breach window unknown

Dec 30, 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 10 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (9) · sorted by filing gap

Show 5 more filingsup to 72d gap

Filing propagation · 10 filings · 9 states

View merged incident ↗

Pattern: first filing Dec 30, last Mar 12 (TX) — a 72-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.