← Microsoft

BlueBleed: 548k+ users exposed on misconfigured endpoint

2022 548.0K records affected Share on X

Data compromised

Email addresses

Technical writeup

SOCRadar identified over 2.4 TB of exposed data on a misconfigured Microsoft endpoint—customer emails, project info, signed documents. Microsoft secured the endpoint and disputed scope (duplicates).

Root cause

Misconfigured endpoint; data exposure.

References