The investor behind Upp’s £1bn project to deploy a new Fibre-to-the-Premises (
FTTP) broadband ISP network across 1 million premises in the East of England by 2025 (
here), LetterOne, has launched a legal challenge against the UK Government’s order for L1 to sell its entire stake in Upp in order to “prevent, remedy, or mitigate the risk to national security” (
here).