French Tax Authority Says Breach Exposed Data of 678,000 People

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Summary

France’s DGFiP says attackers used compromised employee and third-party credentials to steal data belonging to 678,000 users. Exposed information included tax, company and real-estate records; the investigation continues.

Key points

  • DGFiP said the unauthorized access occurred in June and July and was suspended after detection; it found no evidence of exfiltration at that time.
  • The agency later confirmed that attackers used compromised credentials for an employee and a third-party account to access its systems and steal information.
  • The compromised information included reference tax income, withholding tax rates, company names and identifiers, and real-estate cadastral data.
  • DGFiP said usernames and passwords were not compromised and reported the incident to France’s data protection authority, CNIL.
  • The authority is still investigating the breach’s scope and exact number of affected people and plans to contact them directly.

Article Details

Victim Organization
Directorate General of Public Finances (DGFiP)
Incident Type
Data breach involving unauthorized access with compromised employee and third-party account credentials, followed by theft of user information.
Data Types Exposed
  • Reference tax income
  • Withholding tax rate
  • Company names and unique identifiers
  • Cadastral data on real estate addresses and surfaces
Affected Records
678,000 users, according to DGFiP; the agency said it was still investigating the exact number potentially affected.
Operational Impact
The unauthorized access was suspended upon detection. DGFiP continues to investigate the breach and said it will contact affected individuals directly. No service disruption was reported.
Claim Status
confirmed

MITRE ATT&CK

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