Incidents from
In late December 2025, a hacker claimed a cyberattack on ENSAI, France's national school of statistics near Rennes, and published roughly 21 GB of data exposing personal records of around 3,900 students, including ID photos and partial payment card details.
On 31 December 2024 the French Speleology Federation (FFS) disclosed a data leak from its insurance-subscription portal, exposing members' identity, contact details, nationality, profession and licence numbers as part of a wider wave of attacks on French sports federations.
In late December 2025, a data set on roughly 9,551 students of Institut Polytechnique de Paris (incl. ENSAE) was posted to a leak forum, exposing names, emails, postal addresses, phone numbers and about 4,179 IBANs.
On 29 December 2025, an actor calling themselves CZX leaked a 1.35 GB database of more than 400,000 Grenoble École de Management students, alumni and prospects on BreachForums, exposing names, contact details and academic records.
On 29 December 2025, a record of 7,244 Université de Lille students — reportedly from an IUT Informatique internship database — was posted on BreachForums by an actor using the LAPSUS$ name, exposing names, dates of birth, postal addresses, emails and phone numbers.
In December 2025, the dating website "for a Europid vision" WhiteDate suffered a data breach that was subsequently leaked online, initially exposing 6.1k unique email addresses. The leaked data included extensive personal information such as physical appearance, income, education and IQ.
On 28 December 2025, a database of 161,412 members of French at-home music-lesson provider Allegro Musique was leaked, exposing names, postal addresses, emails, phone numbers, social security numbers and registration details.
On 28 Dec 2025, French e-commerce retailer Batteriedeportable (Aubagne) disclosed a November cyberattack that exposed customer identity and contact data — names, dates of birth, postal/email addresses and phone numbers. It claims over a million European customers.
On 28 December 2025, a database of 205,403 B2B prospects from European business directory Europages was reported leaked, exposing contact and company-registration details (names, job titles, employers, postal and email addresses, phone numbers, SIRET and VAT identifiers).
In late December 2025, the LAPSUS$ Group claimed a breach of France's Ministry of Agriculture and Food, leaking roughly 60 GB (97,210 files) of FTP credentials, SQL databases and system logs spanning 32 departments and 19 business applications.
On 27 December 2025, data on roughly 200 members of Club de natation 95 was exposed after its service provider ACRV was compromised, leaking names, postal and email addresses, phone numbers and IP addresses.
In December 2025, the French operations of Italian energy group ENI suffered a data breach claimed by the Lapsus$ group, exposing professional contact details for tens of thousands of business customers; ENI confirmed the incident and notified the CNIL.
In late December 2025, French recruitment platform HelloWork disclosed that data on roughly 2.8 million jobseekers — names, emails and professional-profile details — was scraped from its CV library via a fraudulently used recruiter account and offered for sale online.
On 27 December 2025, French money-transfer fintech PayTrip suffered a data breach exposing data on 74,877 customers, including names, contact details, IBANs and account balances, later circulated online by a threat actor.
In late December 2025, the town hall of Lens (Pas-de-Calais, France) disclosed an intrusion into its information system that paralysed municipal services for about a week, blocking staff software and telephone lines; the attack vector was undisclosed and data theft was not confirmed.
In late December 2025, the French Kick Boxing Federation (FFKMDA) had its member database leaked on BreachForums, exposing 361,321 licensees' names, dates of birth, nationalities, contact details, postal addresses and licence records across 2015-2026 seasons.
In December 2025, French parcel-delivery firm Mondial Relay disclosed a cyberattack in which attackers accessed customer and shipment data — names, emails, postal addresses, phone numbers and parcel-tracking details; a dark-web actor claimed roughly 25.7 million records.
On 26 December 2025, a customer database from French online boutique Nouvelle Lune was leaked, exposing personal data for roughly 161 customers, including names, email and postal addresses, and order history.
Data on roughly 1.3 million members of the French Swimming Federation (FFN) was put up for sale on BreachForums on 23 December 2025 after its Extranat management platform was breached, exposing identity details, contact information and licence numbers.
On 22 December 2025, a database of roughly 240,000 users of French casting platform 123casting was published on BreachForums, exposing identities, contact details, MD5-hashed passwords, physical measurements, ethnic origin, photo/video books, private messages and payment data.
Altitude Infra, a major French independent fiber-optic infrastructure operator, had ~5.76 GB (52 files) stolen from a partner extranet and offered for sale online, exposing network documentation, ISP-partner files and end-customer eligibility data across its 3M+ connected locations.
On 22 December 2025 a database attributed to the French justice system (justice.fr) recirculated online, exposing personal, professional and banking data — including IBAN/BIC — of 1,100+ magistrates, judges, lawyers and judicial staff.
In December 2025, a 680 MB dataset on ~860,000 Chronopost customers — names, emails and parcel details scraped from the La Poste Pickup relay-point network — was published on BreachForums; the data covered shipments from spring 2025.
On 19 December 2025, a data leak at French anti-racism association La Licra (LICRA) exposed the email addresses and hashed passwords of 186 website subscribers and 8 administrators.