Iron Mountain: Data breach mostly limited to marketing materials

Iron Mountain reported that a claim by the Everest extortion gang involved access to a single, third-party-shared folder containing primarily marketing materials via a compromised login; the company states no customer-sensitive data, no broader system breaches, and no ransomware deployment occurred. The article also summarizes Everest's modus operandi as a data-theft extortion group and initial access broker with a history of publishing stolen files.