What are the steps to configure an iPhone so it can located if it is lost?
Go to my iCloud.com/find and sign in with your Apple ID. A map will show your device's reported position as a green dot. play a sound if it necessary.
another way is to click on the Remote Lock to remotely set a pass code lock.
In addition you can perform a Remote Wipe which erase all contacts, email, photos. once you find it you can restore it from your backup.