diff --git a/Convergence Secret.md b/Convergence Secret.md
index 26c6fdd..5ecf057 100644
--- a/Convergence Secret.md	
+++ b/Convergence Secret.md	
@@ -22,8 +22,17 @@ would allow me to determine that you have uploaded a file to the grid.
 This isn't a big deal for things that are personally produced, but is a
 big deal for commonly known things that you want to keep secret that you
 know about. Examples would be a Bible in China or The Anarchist's
-Cookbook at the High School that I went to. Here's the details of the
-origin of the convergence secret: `Convergence Secret Justification`_
+Cookbook at the High School that I went to.  This is called the 
+"Confirm-The-File" attack.
+
+There is one more way that this can be used.  Let's say that you know
+somebody stores their W-2 (a US tax document) on their Tahoe-LAFS grid.
+You can, with a little script, try various numbers for identity information
+and eventually end up with your full identity and salary.  This is called
+the "Learn-The-Remaining-Information" attack.
+
+Here's the details of the origin of the convergence secret:
+`Convergence Secret Justification`_
 
 .. _`Convergence Secret Justification`:
    <https://tahoe-lafs.org/hacktahoelafs/drew_perttula.html>