Former cabinet members may have broken their oaths of secrecy when debating Budget 2017 in Parliament, said Dewan Rakyat speaker Pandikar Amin Mulia.

"What I heard the other day, is that the cabinet's decision had not been carried out. That is (secret) cabinet information," Pandikar told a press conference in the Parliament reception room today.

He said this when asked to comment whether the speeches by former deputy prime minister Muhyiddin Yassin, ex-second finance minister Husni Hanadzlah, and ex-rural and regional development minister Shafie Apdal – all of which touched on 1MDB – had breached any House rules.