The committee is probing allegations that KPMG misused confidential client information to win work, which have already led to several resignations.

KPMG has defied an order to hand over documents on data misuse, arguing it could compromise staff facing an ASIC probe. Senator O’Neill blasted the move.

Professional services editor Edmund Tadros on the KPMG allegations and why they might be more damaging than the PwC scandal three years ago.