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August 13, 2026 Verified Intellectual property software and services

Questel 2026 Data Breach

Questel confirmed unauthorized access to part of its Microsoft 365 environment in a statement provided on August 13, 2026.

Unknown
Affected People
0
Data Types
Unknown
Severity
Yes
Verification

Additional Information

Added DateSeptember 11, 2026
Breach DateAugust 13, 2026
Domainquestel.com
SourceQuestel statement reported by CyberInsider
Last Content UpdateSeptember 11, 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 NameQuestel SAS
SectorIntellectual property software and services
CountryFrance
Websitequestel.com

Risk Level

Unknown

The affected total is not confirmed, so severity cannot be determined from a record count alone.

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