diff --git a/manifests/helm/airflow/1.16.0/CUSTOM-README.md b/manifests/helm/airflow/1.16.0/CUSTOM-README.md
index b596a38..130019d 100644
--- a/manifests/helm/airflow/1.16.0/CUSTOM-README.md
+++ b/manifests/helm/airflow/1.16.0/CUSTOM-README.md
@@ -50,13 +50,16 @@ helm upgrade airflow ./ -f custom-values.yaml  --install -n airflow --create-nam
   # git 리포지토리의 clone 및 pull 실행 시 사용할 username, password 설정.
   # 실행하는 git 이미지의 버전은 v3, v4 2가지가 있고 사용하는 환경변수가 다름.
   # 2가지 설정을 하지 않을 시 동작 에러 발생.
+  # 값은 base64 다. 아래는 예시 값이므로 배포 전 실제 git 계정 값으로 교체한다
+  # (Q2hhbmdlTWUxMjM0IQ== = "ChangeMe1234!", 생성: printf '<암호>' | base64).
+  # 실제 암호를 카탈로그에 적어 커밋하지 않는다.
   extraSecrets:
     git-credentials:
       data: |
         GIT_SYNC_USERNAME: c3Vkb3VzZXI=
         GITSYNC_USERNAME: c3Vkb3VzZXI=
-        GIT_SYNC_PASSWORD: UGFhc2FkbTEyMzQh
-        GITSYNC_PASSWORD: UGFhc2FkbTEyMzQh
+        GIT_SYNC_PASSWORD: Q2hhbmdlTWUxMjM0IQ==
+        GITSYNC_PASSWORD: Q2hhbmdlTWUxMjM0IQ==
   ```
    
 
diff --git a/manifests/helm/airflow/1.16.0/custom-values.yaml b/manifests/helm/airflow/1.16.0/custom-values.yaml
index 565ba60..c980554 100644
--- a/manifests/helm/airflow/1.16.0/custom-values.yaml
+++ b/manifests/helm/airflow/1.16.0/custom-values.yaml
@@ -59,13 +59,16 @@ dags:
       value: "true"
       
 
+# 아래 자격증명은 예시 값이다(base64). 배포 전 실제 git 계정 값으로 교체한다.
+#   Q2hhbmdlTWUxMjM0IQ== = "ChangeMe1234!"  ·  생성: printf '<암호>' | base64
+# 실제 암호를 이 파일에 적어 커밋하지 않는다.
 extraSecrets:
   git-credentials:
     data: |
       GIT_SYNC_USERNAME: c3Vkb3VzZXI=
-      GIT_SYNC_PASSWORD: UGFhc2FkbTEyMzQh
+      GIT_SYNC_PASSWORD: Q2hhbmdlTWUxMjM0IQ==
       GITSYNC_USERNAME: c3Vkb3VzZXI=
-      GITSYNC_PASSWORD: UGFhc2FkbTEyMzQh
+      GITSYNC_PASSWORD: Q2hhbmdlTWUxMjM0IQ==
 
 webserver:
   defaultUser:
diff --git a/manifests/helm/gitea/12.4.0/test-values.yaml b/manifests/helm/gitea/12.4.0/test-values.yaml
index c9f160d..9b29bf2 100644
--- a/manifests/helm/gitea/12.4.0/test-values.yaml
+++ b/manifests/helm/gitea/12.4.0/test-values.yaml
@@ -52,7 +52,7 @@ persistence:
 gitea:
   admin:
     username: sudouser
-    password: Paasadm1234!
+    password: ChangeMe1234!
     email: "sudouser@cro.com"
   config:
     APP_NAME: paasup git
@@ -64,13 +64,13 @@ gitea:
       HOST: postgresql-postgresql-ha-postgresql:5432
       NAME: gitea
       USER: gitea
-      PASSWD: Paasadm1234!
+      PASSWD: ChangeMe1234!
       CHARSET: utf8
       SCHEMA: gitea
       SSL_MODE: disable
     session:
       PROVIDER: postgres
-      PROVIDER_CONFIG: user=gitea password=Paasadm1234! host=postgresql-postgresql-ha-postgresql port=5432 dbname=gitea_session sslmode=disable
+      PROVIDER_CONFIG: user=gitea password=ChangeMe1234! host=postgresql-postgresql-ha-postgresql port=5432 dbname=gitea_session sslmode=disable
       COOKIE_NAME: i_hate_gitea
     service:
       DEFAULT_ALLOW_CREATE_ORGANIZATION: true
diff --git a/manifests/helm/keycloakx/7.2.2/CUSTOM-README.md b/manifests/helm/keycloakx/7.2.2/CUSTOM-README.md
index b131029..284fc56 100644
--- a/manifests/helm/keycloakx/7.2.2/CUSTOM-README.md
+++ b/manifests/helm/keycloakx/7.2.2/CUSTOM-README.md
@@ -50,7 +50,7 @@ extraEnv: |
   - name: KC_BOOTSTRAP_ADMIN_USERNAME
     value: admin
   - name: KC_BOOTSTRAP_ADMIN_PASSWORD
-    value: Paasadm1234!
+    value: ChangeMe1234!        # 예시 값 — 배포 전 교체한다
   - name: TZ
     value: Asia/Seoul
 ```
diff --git a/manifests/helm/keycloakx/7.2.2/custom-values.yaml b/manifests/helm/keycloakx/7.2.2/custom-values.yaml
index 0a3d3f1..ca3be81 100644
--- a/manifests/helm/keycloakx/7.2.2/custom-values.yaml
+++ b/manifests/helm/keycloakx/7.2.2/custom-values.yaml
@@ -75,6 +75,6 @@ extraEnv: |
   - name: KC_BOOTSTRAP_ADMIN_USERNAME
     value: admin
   - name: KC_BOOTSTRAP_ADMIN_PASSWORD
-    value: Paasadm1234!
+    value: ChangeMe1234!        # 예시 값 — 배포 전 교체한다
   - name: TZ
     value: Asia/Seoul
diff --git a/manifests/helm/nemo/25.4.0/custom-values.yaml b/manifests/helm/nemo/25.4.0/custom-values.yaml
index d6357d9..cfb9bde 100644
--- a/manifests/helm/nemo/25.4.0/custom-values.yaml
+++ b/manifests/helm/nemo/25.4.0/custom-values.yaml
@@ -1,10 +1,12 @@
-ngcAPIKey: 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
+# NGC API 키는 예시 값이다 — 배포 전 반드시 실제 키로 교체한다.
+# 실제 키를 이 파일에 적어 커밋하지 않는다(nvcr.io pull 권한을 가진 자격증명이다).
+ngcAPIKey: nvapi-EXAMPLE-REPLACE-WITH-YOUR-NGC-API-KEY
 
 imagePullSecrets:
   - name: nvcrimagepullsecret
     registry: nvcr.io
     username: $oauthtoken
-    password: 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
+    password: nvapi-EXAMPLE-REPLACE-WITH-YOUR-NGC-API-KEY
 
 data-store:
   enabled: true