How to hide certain list columns depending upon logged in user

There is no OOB way of limiting the access to a list column. The column can be hidden from the form using JavaScript but users can still see the page source and grab the information from there. Following example shows how to do it using JavaScript:

<script type="text/javascript" src="/Shared%20Documents/JS/jquery.min.js"></script>
<script type="text/javascript" language="javascript" src="/Shared%20Documents/JS/jquery.SPServices-0.6.2.min.js"></script>
<script language="javascript" type="text/javascript">
$(document).ready(function() {
  $().SPServices({
    operation: "GetGroupCollectionFromUser",
    userLoginName: $().SPServices.SPGetCurrentUser(),
    async: false,
       completefunc: function (xData, Status) {
       var xml = xData.responseXML.xml;
       if (xml.search('Test Group') != -1)
  {
         var feedbackField = $("input[title=Feedback]");
         feedbackField.parent().parent().parent().hide();       
  }
     }
  });
});
</script>

Source: http://www.sharepointnadeem.com/2011/09/hide-sharepoint-list-field-based-on.html

If hiding the column is sufficiënt you can use Nadeems' answer. You can also hide the information securely using out of the box techniques explained below.

The steps

• create a seperate (custom) list only for SSN's
• give this list the read permissions as you would like your SSN column to have
• add a sample SSN (use the title field)
• In your main list (not the new SSN list) add a column of type "lookup" and select the SSN list. Leave all other settings default
• now when adding a new item to your main list, you can select the sample SSN from a dropdown box

To what effect

Even though the lookup column will not disappear, the value will be hidden to users not authorized to the SSN list.

Note

If you don't want to go to the SSN list every time you add an item then you could create a SharePoint workflow to automate this process with a SSN column in the main list whos value is moved to the SSN list after adding.

I guess you can use info path if you open and customize through info path filler. And hide the field if login is not equal to login id.