I work as a senior iOS dev at a major bank here in Canada, and I can say this is by far the most likely scenario. First off, killing cheques would have to be a

I work as a senior iOS dev at a major bank here in Canada, and I can say this is by far the most likely scenario. First off, killing cheques would have to be a Universal - global - and immediate, thing. For as long as the technology is still in use (everywhere) - even for obscure purposes - it will remain supported and thusly these issues will remain. Nobody in the bank industry is stupid enough to self-sabatoge by not accepting or pressing cheques, because when your landlord wants a stack of post-dated cheques (still) - you’re going to be flying to the next bank. Updating a new system, yes, we’re careful, as all hell, but we push iOS updates consistently. Destroying an old one that is still in place by unfortunate necessity? We can’t do that yet. Doesn’t matter how insecure it is. We just focus on making the apps and web and the new technology that we have a lot more control over as secure as possible.