How to be sure other id not showing in my site. Hackers exclude usa/owner country ips and show their own adsense id in rest countries. This is why, allowed id in these sites or disable revenue sharing feature is necessary.
>>>How to be sure other id not showing in my site.
Download your site to a specific folder for this purpose. Do a search and replace of code. Dreamweaver does this. If you don't have DW then research other HTML software that can do that, maybe HTMLKit.