LONDON— Rebekah Brooks, a top executive in Rupert Murdoch’s News Corp. media empire before resigning Friday in the wake of a phone hacking scandal, was arrested Sunday by Scotland Yard in a broadening probe into illicit newsgathering. Police confirmed a 43-year- old woman was taken into custody Sunday on charges of conspiring to intercept communications and on corruption allegations, a reference to bribes made to police officers for news tips.