Houghton Mifflin Harcourt Publishing
Disclosed Dec 15, 20178 years agoConfirmed
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 | Names, Social Security numbers, Names |
| Sector | Media · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Maine Attorney General breach notice archive: Houghton Mifflin Harcourt Publishingmaine.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| Maine AGresidents of ME | Dec 15, 2017 | 1 |
History of this record
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (Maine AG), confirmed by Maine AG. Record counts are as reported. Not legal advice.