diff --git a/cve-2021-44228.md b/cve-2021-44228.md
index 27de1ff..5b72d86 100644
--- a/cve-2021-44228.md
+++ b/cve-2021-44228.md
@@ -47,3 +47,11 @@ ext {
 ```bash
 sudo cat /var/log/nginx/access.log | grep '${jndi:'
 ```
+
+### Blacklist IP Addresses
+```
+62.210.130.250
+45.155.205.233
+45.137.21.9
+75.76.121.218
+```