Was your data in the French Citizens breach?
Check whether your email address was in it
Check my exposureFree. No password — we email you a six-digit code. This breach and every other one your address appears in.
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 record from Have I Been Pwned, CC BY 4.0. 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.
- Payment or bank details
Contact your bank, ask them to monitor or reissue the card, and check statements for small “test” transactions. - Home addresses
Get your address removed from data brokers — they re-list roughly every four months, so this needs repeating. - Phone numbers
Move two-factor authentication off SMS to an authenticator app or passkey, and add a port-out PIN with your mobile provider. - Names and usernames
Search your usual username to see what else it exposes, and use distinct handles for sensitive accounts. - Email addresses
Treat any message referencing this service with suspicion, and never act on links in unexpected emails. - Confirm you were actually in it
Run a free scan 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
What data was exposed in the French Citizens breach?
The French Citizens breach exposed payment or bank details, home addresses, phone numbers, names and usernames, email addresses, ip addresses. Direct financial fraud, plus convincing scam calls that quote your real card or account details to establish trust.
How many people were affected by the French Citizens breach?
Around 28,445,106 accounts were exposed, making it a very large breach by any measure.
What should I do if I had a French Citizens account?
Contact your bank, ask them to monitor or reissue the card, and check statements for small “test” transactions. You can check whether your own email appears in this breach with a free Nullivo scan — no password required.
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.