diff --git a/core-java-modules/core-java-security-2/README.md b/core-java-modules/core-java-security-2/README.md
index 684f2504cc..680a7de925 100644
--- a/core-java-modules/core-java-security-2/README.md
+++ b/core-java-modules/core-java-security-2/README.md
@@ -17,4 +17,5 @@ This module contains articles about core Java Security
 - [InvalidAlgorithmParameterException: Wrong IV Length](https://www.baeldung.com/java-invalidalgorithmparameter-exception)
 - [The java.security.egd JVM Option](https://www.baeldung.com/java-security-egd)
 - [RSA in Java](https://www.baeldung.com/java-rsa)
+- [3DES in Java](https://www.baeldung.com/java-3des)
 - More articles: [[<-- prev]](/core-java-modules/core-java-security)