I need that to be answer in 3 pages including at least 3 references.

Bring the Madoff story up to date with events that occurred after the case book went to print. Discuss your thoughts on Madoff's auditor and the lack of awareness any regulators had that such a large company was audited by a sole-practitioner firm. Why did that happen? Could it happen again? Consider that Madoff was a "service provider" to various companies that outsourced investment activities to Madoff. If the auditors of "feeder firms" had adequately investigated Madoff as a third party service provider (formerly covered under SAS 70, now under the attest standards), would the Madoff fraud have been uncovered?