Everest ransomware gang said to be sitting on mountain of Under Armour data

Have I Been Pwned ingested files leaked by the Everest ransomware group that allegedly expose 72.7 million Under Armour customer accounts, including names, email addresses, dates of birth, geographic locations and purchase history; Everest claimed additional PII (phone numbers, addresses, loyalty details) and had previously threatened ransom and listed Under Armour on its leak site, while Everest’s history and business model (double-extortion ransomware, network access brokerage, insider recruitment) are noted alongside a proposed class action lawsuit.