When installing apps on your smartphones, watch out for dubious links and apps. If you are requested to give more details than necessary, stay away from such apps or links.Install tracking software to help you locate your phones if it ever gets stolen or lost. Some tracking software would remotely lock your phones once it is considered stolen.
Some would send messages to you once it registers that an unauthorized user is accessing your phone. Avoid saving login details of sensitive apps or websites like your banking details on you phone. If a thief gets hold of those details, you can be sure your money is gone.