In her mail, the Academy President also added: "unsparing in our assessment that the mistake made by representatives of (PwC) was unacceptable." Brian Cullinan and Martha Ruiz were the two PwC accountants, who were in charge of handing over the winner's envelopes to the presenters.
Cheryl Boone Isaacs enlisted the new measures, which includes appointing a third personnel, who would also remain informed about the winners ahead of the announcements. Earlier it was reported that Mr Culligan was spotted tweeting before the infamous envelope mix-up. Now, the new measures also ban the use of electronic devices backstage, reported AFP.
Next year, Pricewaterhouse Coopers will rehearse "for possible onstage issues" ahead of the show and "improvements to onstage envelope category verification" will also be added, Ms Isaacs's mail said, reported AFP.
This year's epic blunder at the climactic Oscar moment was actually a mysterious case of switched envelopes which lead La La Land to be announced as the Best Film instead of the actual winning film Moonlight. Actors Warren Beatty and his Bonny And Clyde co-star Faye Dunaway were given the wrong envelopes to read out the Best Film Oscar winner from. Soon, La La Land was announced at the Best Film but only to be corrected by the film's producer Jordan Horowitz some two minutes later. "Guys, guys, I'm sorry. No. There's been a mistake. Moonlight, you guys won best picture. This is not a joke," said Mr Horowitz, praised later by Moonlight director Barry Jenkins for his graceful handling of the chaos that the 89th Academy Awards were instantly plunged into.
(With AFP inputs)