Let's say your manufacturer informs you their APP has malware in it and your customers should delete it, but a new fix is due quickly. Its likely a major feature in the decision process and they aren't going to be happy without it.
Do you notify your customers? If so, how? How does everyone get the message? Do you have a way to track who has the app?
Is deleting an app enough? With some computer viruses the only real sure fix is to format the drives and install a previous backup?