Unfortunately, hackers are everywhere! When you purchase a wireless doorbell, you first need to consider whether it has a password feature. If they give you the freedom to set a password, you have completed one security step. Second, you will have to determine your password against hackers in a way that is not easy to find. Simple passwords are easy to guess, so it won't take seconds for hackers to change your password and take over your wireless doorbell system. For your security, it is recommended that you do not share your password.