557K accounts from Orange Romania (orange.ro) were exposed in this breach. Besides email addresses, it included partial credit card data, which makes it a high-risk breach.
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Email addressesPartial credit card dataPhone numbers
In February 2025, the Romanian arm of telecommunications company Orange suffered a data breach which was subsequently published to a popular hacking forum. The data included 556k email addresses (of which hundreds of thousands were in the form of [phone number]@as1.romtelecom.net), phone numbers, subscription details, partial credit card data (type, last 4 digits, expiration date and issuing bank). The breach also exposed an extensive number of internal documents.
Source: Have I Been Pwned (CC BY 4.0)