diff --git a/src/main/java/it/pagopa/interop/probing/eservice/mock/webservice/util/SecurityUtil.java b/src/main/java/it/pagopa/interop/probing/eservice/mock/webservice/util/SecurityUtil.java
index d97b616..d5ed506 100644
--- a/src/main/java/it/pagopa/interop/probing/eservice/mock/webservice/util/SecurityUtil.java
+++ b/src/main/java/it/pagopa/interop/probing/eservice/mock/webservice/util/SecurityUtil.java
@@ -5,9 +5,12 @@
 import java.security.spec.X509EncodedKeySpec;
 import java.util.Base64;
 import io.jsonwebtoken.Jwts;
+import java.util.logging.Logger;
 
 public class SecurityUtil {
 
+  private static final Logger logger = Logger.getLogger(SecurityUtil.class.getName());
+
   public static boolean checkJwtValid(String authorizationHeader, String pKey) {
 
     try {
@@ -26,6 +29,7 @@ public static boolean checkJwtValid(String authorizationHeader, String pKey) {
 
       Jwts.parserBuilder().setSigningKey(publicKey).build().parseClaimsJws(authTrimmed);
     } catch (Exception e) {
+      logger.warning("Exception: " + e.getMessage());
       return false;
     }
     return true;