Australia's most powerful department has failed to complete a secret Ombudsman direction to review hundreds of senior public appointments over illegality concerns.

Guide Dogs Victoria has been caught lying about its poor performance, including blaming its surging wages bill on increasing client numbers - when they've slumped.

Victorian Opposition leader Matthew Guy has been caught lying about cooperating with a donation fraud investigation and referred to the state’s corruption regulator.

NSW Premier Dominic Perrottet says he is proud of the state’s corruption watchdog which “has teeth”, while refusing to say if it's interviewed him over the ICAC scandal that felled Gladys Berejiklian.

Medibank hackers may be in Russia, as well as in "other countries", say police, as Optus goes silent on ransom claim.

The directors of Optus owner Singtel were given major pay rises just weeks before the telco suffered one of the biggest data breaches in Australia’s history.