PJSC VimpelCom

PJSC VimpelCom operates as a telecommunications provider headquartered in Russia, with its historical services centered on fixed-line broadband internet for residential customers. The company's known market focus was on home broadband subscribers within Russia, as indicated by the specific customer segment impacted by a major historical incident. Its operational scope was domestic, with no evidence in the provided material of international service provision or mobile network operations for the affected cohort. The organization's core business involved the registration and provision of fixed-line internet accounts, managing personal customer data including full names, physical addresses, and associated telephone numbers as part of its service delivery.

A defining event in the company's documented history is a significant data security incident. Internally, a breach occurred years prior to 2017, compromising the personal information of approximately 8.7 million individuals who were former home broadband subscribers. The exposed data set was extensive, containing full names, addresses, and both mobile and home phone numbers of those who had registered services before late 2016. The company identified the responsible parties internally at the time of the original breach but did not make a public disclosure. Subsequently, the stolen records were offered for sale and distributed via online channels, including Telegram platforms. This incident exclusively affected the fixed-line internet customer base within Russia, with no impact on mobile subscribers or customers located outside the country. The breach's later emergence on illicit markets underscores a prolonged period of data vulnerability following the initial internal discovery.