When i click the logout button it goes to the login.aspx but we click the back button of browser it shows the all the data. How to fix this?

protected void Button1_Click(object sender, EventArgs e)
{
//this Session.Abandon() method is used for to logout of the system
//response.redirect direct command direct your page to that you want.
//like on this example I am redirecting to my home page.

Session.Abandon();
Response.Redirect("home.aspx");
}

Try this script in logout page

<script>
window.history.forward(1)
</script>