Federal senators have accused senior leaders in Australia's accounting and auditing industry of behaving disgracefully as more revelations emerge about KPMG's whistleblower scandal.

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

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