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Confidence MediumApr 22, 2025oracle.com

Oracle Cloud and Oracle Health experience cyber incidents, sensitive data accessed

PatternExternal actor · Error · Confidentiality impact

Oracle Cloud experienced multiple cyber incidents, reported on April 22, 2025, affecting legacy environments on "Oracle Cloud Classic" and Oracle Health servers. Hackers gained access to significant volumes of data. Oracle also notified customers of a breach at Oracle Health (formerly Cerner), impacting multiple U.S. healthcare organizations and hospitals. The threat actor is demanding millions of dollars in cryptocurrency not to leak or sell the stolen data.

Signal date
Apr 22, 2025
Updated
Jun 26, 2026
Confidence
Medium
Sources
2 sources
oracle.com logo

Oracle

Sector
Health Care and Social Assistance
Signals
1 linked

Signal context

First seen: Apr 22, 2025

Last updated: Jun 26, 2026

Status: Public signal

Key points

  • Multiple cyber incidents reported on April 22, 2025.
  • Affected Oracle Cloud Classic and Oracle Health legacy environments.
  • Hackers gained access to significant volumes of data.

Signal analysis

Beta

This analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.

Affected organization
Oracle logo
Oracle

Sector: Health Care and Social Assistance

Likely country: Location not provided

Estimated
Threat source
Error activity

Watch process controls, misconfiguration and accidental disclosure paths.

  • Source type: outside the affected organization
Business impact
Potential data exposure

Impact area: Confidentiality

Likely asset: Server or cloud data store

Trend context
12 signals with similar action pattern
  • 6 signals in the same sector
  • 90 signals with the same likely impact area
  • 1 signal linked to this organization/domain
Mentioned entities
OracleSuspected Data ExposureOracle Cloud and Oracle HealthOracle CloudOracle Cloud ClassicOracle HealthHackersOracleCernerU.S

External sources

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