diff --git a/ch13_security.adoc b/ch13_security.adoc
index 973147d4..688b18bc 100644
--- a/ch13_security.adoc
+++ b/ch13_security.adoc
@@ -190,7 +190,7 @@ we will examine various best practices for practical user security.
 
 ==== Physical Bitcoin Storage
 
-Because most ((("bitcoins", "physical storage")))((("physical bitcoin storage")))users are far more
+Because most ((("bitcoins", "physical storage")))((("physical bitcoin storage")))((("storing bitcoins", id="storing-bitcoin")))users are far more
 comfortable with physical security than information security, a very
 effective method for protecting bitcoins is to convert them into physical
 form. Bitcoin keys, and the seeds used to create them, are nothing more than long numbers. This means that
@@ -245,7 +245,7 @@ more details, see <<ch05_wallets>>.
 
 ==== Diversifying Risk
 
-Would you carry your entire net worth in cash in your wallet? Most
+Would you((("risk diversification")))((("storing bitcoins", startref="storing-bitcoin"))) carry your entire net worth in cash in your wallet? Most
 people would consider that reckless, yet Bitcoin users often keep all
 their bitcoins using a single wallet application. Instead, users should spread the risk
 among multiple and diverse Bitcoin applications. Prudent users will keep only
@@ -256,7 +256,7 @@ storage).
 
 ==== Multisig and Governance
 
-Whenever a company or individual stores large amounts of
+Whenever a ((("multisignature addresses")))((("addresses", "multisign")))company or individual stores large amounts of
 bitcoins, they should consider using a multisignature Bitcoin address.
 Multisignature addresses secure funds by requiring more than one
 signature to make a payment. The signing keys should be stored in a