Hi, when I clicked Software Update, it shows "iOS 15.8.2 iOS is up to date". However, when I went to an Apple store to purchase something, the staff asked me to download and install the Apple store app to place the order even I had my credit card ready to buy an in-stock item. This is very unusual. Never encountered such request before. When I tried to install the app, it said that it requires a version which is more recent than the one I have. I guess that may be the reason I keep getting "Cannot Connect to App Store" error when using the app. This brings to the important question of whether or not it is a bad idea to do online banking on an iPhone with an outdated iOS. Does it still get security patch?