I am a Canadian Citizen and IB Canada accounts are protected in the same way that other accounts at accredited Investment Dealers would be protected. If IB goes bankrupt I am protected but only up to 100K.
However, it has become clear to me that it's not a simple matter. I think there exist situations in which I could lose money through no fault of my own but CIPF would not cover me. It depends on what events precipitate the losses