Scammers are unfortunately a common problem in today's world. It is important to take steps to protect yourself from them. One of the best ways to do this is to change your settings on your phone to ensure that only people you know can contact you. By going to the Settings, selecting Privacy and Security, and then Calls, you can select "My Contacts" or "Nobody" to ensure that only people you know can call you. Similarly, by going to Privacy and Security -> Groups and selecting "My Contacts" or "Nobody" for the "Who can add me to group chats?" setting, you can prevent scammers from adding you to group chats. Taking these steps will help to protect you from scammers and ensure that only people you know can contact you.