Breachesby GlyphInternal Revenue Service
Disclosed May 26, 2015700,000 affectedConfirmed
Criminals abuse IRS Get Transcript tool to pull prior-year tax returns
Criminals used Social Security numbers, birth dates and addresses obtained elsewhere to pass the IRS Get Transcript application's identity checks and download taxpayers' transcripts. The IRS first put the number at about 100,000 accounts, then raised it, reporting more than 700,000 in February 2016.
What is known
| People affected | 700,000 (as reported by the organization) |
|---|---|
| Disclosed | May 26, 2015 |
| Attack | Credential stuffing |
| Data exposed | Social Security numbersDates of birthAddressesFinancial |
| Sector | Government · US |
| Status | Confirmed |
Sources
Notices filed
History of this record
First seen 2026-09-25 (Research), confirmed by Research. Record counts are as reported. Not legal advice.