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Top Data Breaches of December 2025

ID: 8d1dd480-1726-5333-b946-07cb73a8af14

STIX ID: report--8d1dd480-1726-5333-b946-07cb73a8af14

Feed Name: Security Boulevard

Threat Score
80/100

Date Published: 2025-12-31

Date Updated: 2026-04-22

Author: Likhil Chekuri

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This December 2025 roundup details several significant data breaches and incidents — including Petco (misconfigured app exposing PII), University of Phoenix (third-party data exposure affecting ~3.5M people), Inotiv (ransomware and data access affecting 9,542 individuals), Freedom Mobile and SoundCloud (unauthorized access and service/remote-access disruption), and 700Credit (exposing at least 5.6M records) — highlighting large-scale PII exposures, vendor risks, and the need for configuration hygiene, vendor oversight, and continuous exposure management.

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