How to protect my phone if someone try to hack

• Change your Passcode
• Change your Apple ID Password
• Use Safety Check to make sure you are not sharing information and to see if anyone else is logged into your account.

Use Safety Check on iPhone to stop sharing and secure your account - Apple Support

ahad30 wrote:

someone is trying to hack my device how can i protect my phone

What is happening that leads you to believe that it is being hacked?