Angola’s largest telecommunications operator, Unitel, said Tuesday it was hit by a cyberattack in the early hours of the morning that has left millions of people nationwide without voice services, mobile data, and internet access. The attack struck less than 24 hours before the formerly state-owned company was due to make its landmark debut on the country’s stock exchange. “Response and containment mechanisms were immediately activated, and technical and cybersecurity teams were mobilized” to mitigate the incident and restore services, the company said. The Angolan state, through its asset management institute IGAPE, sold a 15% stake in the company. Neither BODIVA nor Angola’s capital markets regulator had issued any public statement about the incident as of the time of publication.