diff --git a/security/split-bitcoin.md b/security/split-bitcoin.md
index e3a85fe4..bb284fa0 100644
--- a/security/split-bitcoin.md
+++ b/security/split-bitcoin.md
@@ -42,3 +42,15 @@ A "Watching" Wallet and a "Cold" Wallet
 
 9. follow the [electrum documentation in creating an online watching-only wallet](http://docs.electrum.org/en/latest/coldstorage.html#create-a-watching-only-version-of-your-wallet)
 
+Important Notes
+---------------
+
+* The private keys (xpriv) should never be moved outside of `offline-bitcoin`.
+* For copying out the public keys (xpub), Qubes provides two secure, convenient
+  methods: the [inter-VM clipboard] and [inter-VM file copy] tools. Compared to
+  traditional physically air-gapped machines, these tools makes it very easy to
+  copy out public keys.
+
+[inter-VM clipboard]: /doc/copy-paste/
+[inter-VM file copy]: /doc/copying-files/
+