Everest Ransomware Group Allegedly Claims to Have Breached McDonald’s India

Cybersecuritynews •Guru Baran • January 20, 2026

The Everest ransomware group has claimed responsibility for a major cyberattack targeting McDonald’s India, allegedly exfiltrating 861 GB of sensitive data. The threat actors posted details of the breach on their dark web leak site on January 20, 2026, threatening to publicly release the stolen information if the company fails to respond within a specified […]

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Everest Ransomware Group Breaches McDonald's India, Exfiltrates Customer Data 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. 42 sources 43

Extracted Entities

Everest Ransomware Group Allegedly Claims to Have Breached McDonald’s India

The full story

Extracted Entities

Attack Types (2)

Companies (1)

Countries (1)

Ransomware Groups (1)