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January 3, 2021 Verified Sensitive Record Staffing and recruitment

Adecco 2021 Candidate Data Incident

The 2021 Adecco data incident is a corpus associated with South American candidate data and catalogued with a structured date of January 3, 2021, and 4,284,538 unique emails.

4.3 Million
Reported Records
8
Data Types
Critical
Severity
Yes
Verification

Exposed Data Types

8
Email addresses
Genders
Geographic locations
Marital statuses
Names
Dates of birth
Passwords with unresolved representation
Phone numbers

Additional Information

Added DateMay 31, 2022
Breach DateJanuary 3, 2021
Domainadecco.com
SourceAuthenticated Adecco South America candidate-data corpus and incident reporting
Last Content UpdateJuly 29, 2026

Verification and editorial method

LeakData compares the incident name, date, affected-record count, and exposed data types with accessible sources. Unverified fields are not presented as facts, and records are updated when new evidence becomes available.

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Company Information

Company NameThe Adecco Group
SectorStaffing and recruitment
CountrySwitzerland
Websiteadecco.com

Risk Level

Critical

The reported impact exceeds 1 million and falls within the critical severity band.

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