SFR

SFR is a French telecommunications operator that provides mobile voice and data services, fixed-line broadband internet, and television offerings to residential and business customers. It markets its services under the SFR brand and also operates the low‑cost RED subsidiary for mobile plans. The company supplies convergent bundles that combine fixed, mobile, and TV services, and it offers enterprise solutions such as hosted telephony and cloud connectivity. Its headquarters are located in France, and it functions as the primary telecommunications subsidiary of the Altice group within the country.

SFR’s distinguishing attributes include its role as a major ISP and mobile network operator in France, positioning it among the leading providers in the converged telecommunications market. The company has demonstrated its incident response capabilities through a 2024 breach of its customer order management tool, after which it strengthened authentication procedures, notified the French data protection authority, filed a legal complaint, and opened a dedicated helpline for potentially affected customers. Although the broader Altice group suffered a ransomware attack by the Hive group in 2022, SFR’s French operations were reported to remain unaffected, with no sensitive customer or financial data compromised. Additionally, SFR was among the European ISPs that experienced DNS‑targeted DDoS attacks in 2020, which were mitigated within a day despite reaching peak volumes of up to 300 Gbit/s. These events underscore SFR’s exposure to typical telecom sector threats and its compliance with GDPR‑related breach notification obligations.

Structurally, SFR operates as a subsidiary of Altice, with its French operations forming part of Altice’s telecommunications division; the parent company Altice holds ownership of the SFR brand and its underlying network assets. The organization’s regulatory role is limited to compliance with national and EU telecommunications and data‑protection regulations, rather than any formal licensing or standard‑setting function. As a provider of fixed and mobile infrastructure, SFR maintains a network that supports voice, data, and video services across its service territory, and it continues to invest in network upgrades to meet evolving consumer demand. This description captures the core activities, notable characteristics, and ownership structure of SFR based solely on the information provided.