534K accounts from La Poste Mobile (lapostemobile.fr) were exposed in this breach. Besides email addresses, it included bank account numbers, which makes it a high-risk breach.
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Bank account numbersDates of birthEmail addressesGendersNamesPhone numbersPhysical addresses
In July 2022, the French telecommunications company La Poste Mobile was the target of an attack by the LockBit ransomware which resulted in company data being published publicly. The impacted data included 533k unique email addresses along with names, physical addresses, phone numbers, dates of births, genders and banking information. 10 days after the attack, the La Poste Mobile website remained offline.
Source: Have I Been Pwned (CC BY 4.0)