Megafon.ru 2008

In July 2008 a significant data breach involving Megafon subscribers in the Russian Federation occurred. The incident involved the exposure of sensitive subscriber information through an unsecured web interface or internal data theft. This leak was one of the earliest large scale telecommunications data exposures in the region. The data contained personal identification details and contact information of millions of users. Security researchers and news outlets reported that the database was circulating on underground forums and physical media markets shortly after the discovery. The breach highlighted vulnerabilities in how telecommunications providers managed customer privacy during the rapid growth of mobile networks in the late two thousands.