Harold Thimbleby

Prof. Harold Thimbleby is professor emeritus of computer science, Swansea University.

The terrifying truth about the Horizon scandal

While everyone is rightly calling for the Post Office Horizon postmasters’ convictions to be overturned and for them to be given proper compensation, there is arguably a deeper issue at stake: how much society trusts technology.   We now know that the Horizon accounting software was not reliable. But during the sub-postmasters’ original trials, prosecutors for