Another data point. My spouse was traveling mid-day yesterday and did the OLCI via mobile phone on Wednesday evening and per our SOP requested electronic boarding pass via SMS. The message was promptly sent and received, containing the boarding pass link. Clicking on the boarding pass link resulted in a message pop-up indicating that an update to the Air Canada was required due to the recent security breach. Unfortunately the mobile device is a corporate device that is locked down, so it wasn't possible to update the Air Canada app until it was pushed from corporate IT.

The only workaround was to use a desktop PC, go through OLCI again and print paper boarding pass(es).