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BreachesMay 20, 2026

πŸš¨πŸ‡ΊπŸ‡Έ Reltio allegedly breached: 879,914 customer records and 1.65GB database exposed A threat...

Reltio Master Data Management platform allegedly breached; 879,914 customer records exposed

Summary

A threat actor using the alias zSenior claims to have breached Reltio's cloud-native Master Data Management solution, compromising approximately 879,914 customer records and exposing 1.65GB of database data. The incident affects a widely-used data management platform serving enterprises across multiple sectors. Details on data accessibility and affected customers remain limited at this stage.

Entities

Reltio Master Data Management (product)Reltio (vendor)zSenior (threat_actor)