A significant data breach at Gravy Analytics has compromised the privacy of millions by exposing over 30 million location data points collected from popular apps. The hacker claims to have stolen several terabytes of data, revealing sensitive information about users, including those near military facilities. Unacast, Gravy's parent company, reported the breach to data protection authorities after discovering a misappropriated key was used to access its Amazon cloud environment. The situation raises serious concerns about data brokers and their impact on personal privacy, especially following recent regulatory actions against Gravy Analytics.