Either secure the damn system or don't offer this option. Asking the guest to confirm that they are OK with the fact that someone else might see their personal

Either secure the damn system or don't offer this option. Asking the guest to confirm that they are OK with the fact that someone else might see their personal details and bill is ridiculous. I don't see this as being hostile to the user. There is a known vulnerability, they can't easily fix it, so they tell you upfront that if you bought porn in the hotel room, you might want to go down to the lobby and checkout so others don't see your itemized bill. For most guests, seeing their bill on screen and selecting "check out now, bill my credit card on file" is nothing to worry about. At least they're giving customers a warning. No coffee shop that offers WiFi bothers to tell its customers "It may be possible for others in this Starbucks to view and manipulate the information displayed on and transmitted from your laptop." even though the wireless network is just as insecure and customers can be subject to man-in-the-middle attacks.