I understand what they think will happen. But that doesn’t necessarily mean they’ll be using the banks approved channels etc. You can set up your own private channel in teams and in slack. If people want to communicate without having that info tracked by the bank or company or agency they work for they literally will use another service. Doesn’t even have to be teams or an approved one. This article talks about texts and SMS. But WhatsApp and signal and even discord exist (banning one but not the others is playing whack a mole). This seems like the companies trying to keep up with the times without a real plan that considers alternatives.