The fund believed to be the biggest single loser in Bernard Madoff’s alleged $50bn “Ponzi” scheme is considering suing PwC, its own accountants, for failing to detect the fraud, as victims start looking for deep-pocketed sources of compensation for their losses.

Fairfield Greenwich, whose clients stand to lose $7.5bn invested with Bernard L Madoff Investment Securities, is considering the action after an auditor was named in a case brought by another victim.