Why are five-star hotels safe without security guards?

You just didn't see it. Five-star hotels pay high security fees just to leave a good impression on their guests. Are hidden security measures. The doorman and the front desk are the facades of the hotel, so you can't put too many security guards in that place. Once something happens, the security personnel have a walkie-talkie call and solve it quickly. You have to believe that a standard five-star can gather a group of people in the lobby within two minutes to deal with emergencies.