Every public data breach

47 disclosed this week · 26,367 on record

US Federal Government

Disclosed Jan 5, 2021Confirmed

Official notice

Likely Russian APT compromised fewer than ten US agencies via SolarWinds Orion

The FBI, CISA, ODNI and NSA said an APT actor likely Russian in origin was behind the campaign; of about 18,000 affected SolarWinds Orion customers, a much smaller number saw follow-on compromise, including fewer than ten US government agencies.

What is known

People affectedNot stated in the sources we have
DisclosedJan 5, 2021
AttackSupply chain
Data exposedEmailsInternal documents
SectorGovernment · US
StatusConfirmed
Part ofSolarwinds (2020)

Sources

Notices filed

Same campaign

History of this record
Added2026-09-25
First recordedby seedSource

First seen 2026-09-25 (Research), confirmed by Research. Record counts are as reported. Not legal advice.

Everything about US Federal Government