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Qualys

Disclosed Mar 4, 2021Confirmed

SEC filing

Qualys customer files taken through Accellion FTA server

Qualys confirmed that its Accellion FTA file transfer server was compromised and some customer files were exposed, while its cloud platform hosting customer data was not affected.

What is known

People affectedNot stated in the sources we have
DisclosedMar 4, 2021
AttackSupply chain
Data exposedInternal documents
SectorTech · US
StatusConfirmed
Part ofAccellion (2021)

Sources

Notices filed

Same campaign

Other breaches at Qualys

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.

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