Put not your trust in auditors!

“PricewaterhouseCoopers, the accountancy firm that has overseen the counting of the Oscars ballots for 83 years, has apologised for the most spectacular blunder in the history of the starry ceremony – when the award for best film was mistakenly presented to La La Land instead of the actual winner Moonlight. …

… PwC, one of the best-known accountancy firms in the world, has supervised counting the ballots, and the announcements, for the majority of Academy Awards. Its employees wait in the wings during the ceremony, passing the results to the presenters. The humiliating failure of a system that was supposed to be foolproof, checked and counterchecked repeatedly, could not have been more public – watched by Hollywood stars and millions of people across the world on television. …”

https://www.theguardian.com/film/2017/feb/27/pricewaterhousecoopers-issues-sincere-apology-for-oscars-blunder