Breachesby GlyphHoughton Mifflin Harcourt Publishing
Disclosed Dec 15, 2017Confirmed
What is known
| People affected | Not stated in the sources we have |
|---|---|
| Disclosed | Dec 15, 2017 |
| Happened | Nov 28, 2017 |
| Attack | Not stated |
| Data exposed | NamesSocial Security numbersNames |
| Sector | Media · US |
| Status | Confirmed |
Sources
Notices filed
History of this record
First recordedby backfillSource
First seen 2026-09-25 (Maine AG), confirmed by Maine AG. Record counts are as reported. Not legal advice.