I am guessing you have a shared home listing? LOCK YOUR PERSONAL SPACES do not allow access to your stuff. I have whole house listings so a guest would not have access to anything they could use to access my credit.
Also I am lucky in the fact that my county requires that I get a copy of guest ID and keep it for three years. If I had a theft or needed to take a guest to court I would have the actual information.
I would put it in your house rules that the county/city requires you get a copy of ID at check in and have the guests snap a pic and send it to you. I have never been challenged on this.
RR