Megafon.ru

In 2007 the major Russian telecommunications provider Megafon experienced a significant data exposure affecting its customer base. The incident involved the leakage of approximately 100000 records that were found to be publicly accessible. The compromised data included highly sensitive personal identifying information such as full names residential addresses mobile phone numbers and passport details. This breach represented one of the early major telecommunications security incidents in the region highlighting vulnerabilities in customer data management systems during that period.