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Big Four accounting firms

Controversies

Controversies tied to this brand in public sources. A listing is not a finding of fault.

Back to profile4 entries

  1. 2020

    Deloitte and the Autonomy audits

    The UK Financial Reporting Council fined Deloitte for shortcomings in professional skepticism relating to audits of Autonomy's financial statements before Hewlett-Packard acquired the company.

  2. 2020

    PwC and Sonangol conflict allegations

    PwC faced allegations that its simultaneous audit and consulting roles connected with Sonangol created a potential conflict of interest, illustrating continuing concerns about the breadth of services supplied by major audit networks.

  3. 2018

    Carillion audit controversy

    KPMG faced criticism over its audit work for Carillion before the company's collapse. The case became part of broader UK scrutiny of audit quality, auditor skepticism and the concentration of major audits among the Big Four.

  4. 2001

    Enron and Arthur Andersen

    Arthur Andersen's audit relationship with Enron and the destruction of documents connected with the engagement led to criminal proceedings, severe client losses and the collapse of the network as a major competitor. The episode also intensified debate about auditor independence and the structure of the accounting profession.