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Everest Ransomware Group Breaches McDonald's India, Exfiltrates Customer Data

Everest Ransomware Group Breaches McDonald's India, Exfiltrates Customer Data

First seen 21 Jan 2026, 06:39 UTC • •

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ThreatCluster AI
ThreatCluster •March 12, 2026 at 13:27 UTC

The Everest ransomware group has claimed responsibility for a cyberattack on McDonald's India, reportedly exfiltrating 861 GB of sensitive customer data. The group announced the breach on their dark web leak site on January 20, 2026, threatening to release the stolen information if the company does not respond promptly.

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