Everest Ransomware Group Allegedly Exposes 343 GB of Sensitive Data in Major Under Armour Breach

The notorious Everest ransomware group has claimed responsibility for a major cyber breach against Under Armour, the global sportswear giant, alleging the theft of 343 GB of internal data that could impact millions of customers and employees worldwide. The announcement, posted on the group’s dark web leak site on November 16, 2025, includes a sample […]

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