In SharePoint how to protect column data
I shall tell you how to solve the security issue on Share Point 2010. You can download software which will allow you to protect your data. Here is what you need to do:
1. You can download Share Point Column Protector 184.108.40.206. Just visit the page and click the download button at the top left corner. You will get an attachment of 5.40mb.
2. Extract the files and there will be a file which will install the software and two user manuals.
3. Open the SCP_2010_-_User_Guide which is a pdf file and it will guide you through the whole process.
I hope I was able to help you.