Regulators are carrying out a sweeping investigation of conflicts of interest at the largest accounting firms EY, PwC, KPMG and Deloitte.

The Wirecard scandal brought the role of big auditing firms into focus, reports Daily Sun.

The Big Four audit firms – EY, PwC, KPMG and Deloitte are hardly household names. Yet they play a key role in the global economy. They have also all been at the center of a number of major financial scandals. 

For ten years, auditors at EY (Ernst & Young) certified Wirecard's annual financial statements. They failed to uncover that a network of fraudsters were using accounting tricks to write billions into Wirecard's books over several years.

Hundreds of Wirecard employees lost their jobs, and thousands of investors lost a total of €4.5 billion. Why didn't the auditors recognise the fraud? Were they negligent, overextended?

The Big Four dominate the global audit industry, and their vast knowledge of company- and tax-law making them indispensable. Because growth opportunities in auditing have largely been exhausted, the Big Four offer a raft of consulting services, not only to the companies they audit but also to governments.

Have the Big Four become too powerful -- even out of control? This documentary explores the role auditors played in the Wirecard scandal, investigates potential conflict of interest within the Big Four, and sheds light on the companies’ role within a complex web of political and economic dependencies.

Deloitte, EY, KPMG and PricewaterhouseCoopers – have continued to come under closer scrutiny from regulators in the UK and elsewhere over a lack of independence and a lack of choice, as well as allegations about audit quality.

The Big Four each offer audit, assurance, taxation, management consulting, actuarial, corporate finance, and legal services to their clients.

A significant majority of the audits of public companies, as well as many audits of private companies, are conducted by these four networks.

Bd-pratidin English/Golam Rosul