Conflict of interest4 Jul 2018 13:54
Accounting firms are being investigated on a regular basis (KMPG on Carillion) by authorities for not being switched on! The way accounting firms are being paid by the companies themselves for doing the audit represents a big conflict of interest when it comes to representing a "true and fair view" to the shareholders and investors.
So, I wouldn't be surprised if some things were overlooked by the auditors. If you don't believe me, look at Conviviality, Tesco, Carillion, Steinhoff, Enron and many more.