diff --git a/_includes/example_transactions.md b/_includes/example_transactions.md
index 62cc69e0..2e4387ad 100644
--- a/_includes/example_transactions.md
+++ b/_includes/example_transactions.md
@@ -486,6 +486,13 @@ Use the `dumpprivkey` RPC to get the private keys corresponding to the
 public keys used in the two UTXOs out inputs we will be spending.  We need
 the private keys so we can sign each of the inputs separately.
 
+**Warning:** Users should never manually manage private keys on mainnet.
+As dangerous as raw transactions are (see warnings above), making a
+mistake with a private key can be much worse---as in the case of a HD
+wallet [cross-generational key compromise][devguide hardened keys].
+These examples are to help you learn, not for you to emulate on
+mainnet.
+
 {% highlight bash %}
 > bitcoin-cli -regtest getnewaddress
 n4puhBEeEWD2VvjdRC9kQuX2abKxSCMNqN
@@ -1171,6 +1178,10 @@ transaction, the same way we got private keys in the Complex Raw
 Transaction subsection. Recall that we created a 2-of-3 multisig script,
 so signatures from two private keys are needed.
 
+**Reminder:** Users should never manually manage private keys on
+mainnet. See the warning in the [complex raw transaction section][devex
+complex raw transaction].
+
 <div markdown="1" class="multicode">
 {% highlight bash %}
 > bitcoin-cli -regtest signrawtransaction $RAW_TX '''
diff --git a/_includes/references.md b/_includes/references.md
index db42342f..d1a9bcef 100644
--- a/_includes/references.md
+++ b/_includes/references.md
@@ -177,9 +177,11 @@
 [core paymentrequest.proto]: https://github.com/bitcoin/bitcoin/blob/master/src/qt/paymentrequest.proto
 [core script.h]: https://github.com/bitcoin/bitcoin/blob/master/src/script.h
 [DER]: https://en.wikipedia.org/wiki/Abstract_Syntax_Notation_One
+[devex complex raw transaction]: /en/developer-examples#complex-raw-transaction
 [devex payment protocol]: /en/developer-examples#payment-protocol
 [devguide]: /en/developer-guide
 [devguide avoiding key reuse]: /en/developer-guide#avoiding-key-reuse
+[devguide hardened keys]: /en/developer-guide#hardened-keys
 [devguide payment processing]: /en/developer-guide#payment-processing
 [devguide wallets]: /en/developer-guide#wallets
 [devref wallets]: /en/developer-reference#wallets