French tax agency reveals breach exposing personal and tax data of hundreds of thousands
France's tax authority confirmed that a recent cyber intrusion leaked contact details, tax information and, for some, private messages of roughly 600,000 individuals and businesses.
The French tax administration announced that a security breach revealed a wide range of taxpayer information, affecting close to 600,000 people and entities. Exposed data includes tax identification numbers, contact information, marital status, household composition, dependents, family quotient, declared income and withholding rates. For roughly 250 individuals, the content of messages exchanged with the tax authority was also compromised.
Business and professional records were limited to names and nine-digit SIREN identifiers, while cadastral files showed only property addresses and dimensions already in the public domain. The agency is contacting those impacted via email or postal mail and cautions that criminals may use the stolen data for sophisticated phishing, CEO-fraud and bogus adviser scams. In addition, a technical vulnerability was found in the government's Vacant Successions Portal, which has been temporarily shut down pending investigation.
Why it matters
Sensitive tax and personal data of hundreds of thousands of French citizens and firms have been exposed, increasing fraud risk.
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