Was your data in the French Citizens breach?

French Citizens suffered a data breach in 2024 that exposed around 28,445,106 accounts. If you had an account, some of your personal data may be circulating in leaked databases. The fastest way to know is to check your own email — free, in about 30 seconds, no password required.

What happened

In September 2024, over 90M rows of data on French Citizens was found left exposed in a publicly facing database. Compiled from various data breaches, the corpus contained 28M unique email addresses with the various source breaches each exposing different fields including name, physical and IP address, phone number and partial credit card data including payment type and last 4 digits.

Breach details sourced from Have I Been Pwned, the industry-standard breach database. Risk analysis by Nullivo.

What was exposed, and why it matters

Not all breaches carry the same risk — what matters is which fields leaked. Here is what the French Citizens breach exposed and what each item actually enables:

Also listed in this breach: Device information, Email addresses, IP addresses, Names, Partial credit card data, Phone numbers, Physical addresses.

What to do if you were affected

These steps are ordered for this specific breach — the most urgent action given what leaked comes first.

1. Payment or bank details: Contact your bank, ask them to monitor or reissue the card, and check statements for small “test” transactions.
2. Home addresses: Get your address removed from data brokers — they re-list roughly every four months, so this needs repeating.
3. Phone numbers: Move two-factor authentication off SMS to an authenticator app or passkey, and add a port-out PIN with your mobile provider.
4. Names and usernames: Search your usual username to see what else it exposes, and use distinct handles for sensitive accounts.
5. Email addresses: Treat any message referencing this service with suspicion, and never act on links in unexpected emails.
6. Check whether your own email appears in this breach — run a free scan to confirm before you spend time on the steps above.

This breach put your details on data-broker sites

Because French Citizens exposed home addresses, this is one of the breaches that feeds people-search and data-broker sites. Those sites scrape leaked databases, combine them with public records, and republish the result as a searchable profile — which is how a single breach turns into a permanent public listing. Removal works, but brokers typically re-list within about four months, so it has to be repeated.

See our broker-by-broker removal guides →

How urgent is this now?

This data has been circulating for around 2 years, which means it has been copied, combined with other leaks and indexed by search tools many times over.

Remember: a breach can't be "un-leaked" — once a database is out, it exists in countless copies. The goal is to make the leaked data useless: change what can be changed, lock down what can't, and remove what has been republished.

Frequently asked questions

Breaches that exposed similar data

If the French Citizens breach affected you, these breaches exposed comparable information — worth checking too, since leaked datasets are routinely combined.

• Was your data in the Canada Goose breach? (2025, ~581,877 accounts)
• Was your data in the Neiman Marcus breach? (2024, ~31,152,842 accounts)
• Was your data in the Eye4Fraud breach? (2023, ~16,000,591 accounts)
• Was your data in the Addi breach? (2026, ~34,532,941 accounts)
• Was your data in the Paidwork breach? (2026, ~23,272,765 accounts)
• Was your data in the Hathway breach? (2023, ~4,670,080 accounts)

See all breaches we cover →