Make at least two copies of your passport information before departing on your trip. Leave one copy with family or friends. Carry another copy with you. In the event that your passport is lost or stolen, contact your nearest U.S. consulate or embassy office. The copy contains information that will aid in the process of obtaining a reissued passport.
Leave your passport in your hotel room or cruise cabin only if you can lock it in a room/cabin safe. If your room lacks a safe, ask the management at the establishment to lock it in the hotel's safe.
Protect your passport from pickpockets if carrying it while you are out. Place it in an inside pocket or a hidden money belt and away from any other cash or valuables. If you choose to carry your passport in your bag or purse, make sure it's closed and you keep it close to your body by wearing the shoulder strap across your chest. Many luggage and travel accessory companies sell passport holders and packs specifically made to keep your passport safe.