A secret recording from 2013 reveals Post Office boss Paula Vennells was warned not to cover up faults with the Horizon IT system as subpostmasters were being wrongly convicted. In audio obtained by ITV News, independent investigators from Second Sight held a meeting with Ms Vennells, making her aware of allegations that subpostmaster branch accounts could be accessed remotely - which the Post Office denied for years. More than 900 sub-postmasters were wrongly convicted of theft, fraud, and false accounting between 1999 and 2015 due to Horizon faults despite many of them raising issues with the system. A Post Office spokesperson told ITV: “The statutory public inquiry... is the best forum to examine the issues raised by this evidence."