diff --git a/src/main/java/com/eactive/apim/portal/jpa/PersonalDataEncryptConverter.java b/src/main/java/com/eactive/apim/portal/jpa/PersonalDataEncryptConverter.java
index 7561545..1824d24 100644
--- a/src/main/java/com/eactive/apim/portal/jpa/PersonalDataEncryptConverter.java
+++ b/src/main/java/com/eactive/apim/portal/jpa/PersonalDataEncryptConverter.java
@@ -68,7 +68,22 @@ public class PersonalDataEncryptConverter implements AttributeConverter<String,
             }
         }
 
-        log.debug("DB 복호화 : {} -> {}", dbDataOriginal, dbData);
+        if (log.isDebugEnabled()) {
+            //  복호화 결과(평문) 홀수 글자 마스킹
+            String maskedDbData = dbData;
+            if (StringUtils.isNotEmpty(dbData)) {
+                StringBuilder sb = new StringBuilder();
+                for (int i = 0; i < dbData.length(); i++) {
+                    if (i % 2 == 0) {
+                        sb.append(dbData.charAt(i));
+                    } else {
+                        sb.append("*");
+                    }
+                }
+                maskedDbData = sb.toString();
+            }
+            log.debug("DB 복호화 : {} -> {}", dbDataOriginal, maskedDbData);
+        }
 
         return dbData;
     }