Who were the auditors? EY I guess. Isn't it a responsibility of auditors to give reasonable assurance of the financial position? Quite understandably the acquisitions have caused high goodwill ratios. Could that be a case where the management picked up the companies at a higher price than FV & pocketed some part of that excess payment. $4bn is a big amount but still how did it miss the auditors eyes is a big concern, you can't even trust Big 4s fully.