Configuring the Permissions for App setting and the Permissions for Records setting, you can restrict access to records to only specific users.
For instance, if you want to restrict the ability to view, edit, and delete a record to only the user who created the record, configure the Permissions for App setting and the Permissions for Records setting as described below:

• The Permissions for App setting
  

  App creator	[✔] View records   [✔] Add records   [✔] Edit records   [✔] Delete records
  Everyone	[✔] View records   [✔] Add records   [✔] Edit records   [✔] Delete records

  By default, the setting is configured as described above.

• The Permissions for Records setting
  

  Target Records in Priority Order	Assign Permissions for Users, Groups, and Departments
  All records	Created by   [✔] View   [✔] Edit   [✔] Delete
  	Everyone      [  ] View   [  ] Edit   [  ] Delete