It doesn’t get updates, but I’m not overly concerned. It’s running WP10 and security would be a bigger concern if any apps supported it to begin with.

I don’t bank on my phone beyond checking my balance with SMS. If I need to actually move money around I’d rather do it on my computer.

The phone is used for calling, texting, mp3s, the weather, the calendar/reminders, and very occasional maps. I do have my gmail setup via imap with is probably the biggest risk I actually take.

I’ve written half a dozen of my own programs for specific things I need, but otherwise there’s nothing installed.

I know there’s some risk but I’m well aware of it and accept it.