diff --git a/bin/hardening/1.2_enable_verify_sign_packages_from_repository.sh b/bin/hardening/1.2_enable_verify_sign_packages_from_repository.sh
index e8949ce..b655a66 100755
--- a/bin/hardening/1.2_enable_verify_sign_packages_from_repository.sh
+++ b/bin/hardening/1.2_enable_verify_sign_packages_from_repository.sh
@@ -65,8 +65,8 @@ apply_debian () {
         warn "Set to enabled signature of packages option"
         for CONFFILE in $(grep -i "${OPTION}" /etc/apt/ -Ir | grep -v "^#" | awk -F: '{print $1}')
         do
-            sed -i "/${OPTION}/d" ${CONFFILE}
-            #sed -i "s/${OPTION}.*true.*/${OPTION} \"false\";/g" ${CONFFILE}
+			backup_file ${CONFFILE}	
+            sed -i "s/^${OPTION}/#&/" ${CONFFILE}
         done
     fi
 }
@@ -75,9 +75,12 @@ apply_centos () {
 		ok "The signature of packages option is enable "
 	elif [ $FNRET = 1 ]; then
 		warn "Set to enabled signature of packages option"
+		backup_file $YUM_CONF
 		sed -i "s/$YUM_OPTION=.*/$YUM_OPTION=1/g" $YUM_CONF
+		
 	else 
 		warn "Add $YUM_OPTION option to $YUM_CONF"
+		backup_file $YUM_CONF
 		add_end_of_file $YUM_CONF "$YUM_OPTION=1"
     fi
 }
diff --git a/bin/hardening/1.3_enable_verify_sign_of_local_packages.sh b/bin/hardening/1.3_enable_verify_sign_of_local_packages.sh
index 4daea6a..be2ada4 100755
--- a/bin/hardening/1.3_enable_verify_sign_of_local_packages.sh
+++ b/bin/hardening/1.3_enable_verify_sign_of_local_packages.sh
@@ -63,8 +63,8 @@ apply_debian () {
         ok "The signature of local packages option is enable "
     else
         warn "Set to enabled signature of local packages option"
-            sed -i "/^${OPTION}/d" ${CONFFILE}
-            #sed -i "s/${OPTION}.*true.*/${OPTION} \"false\";/g" ${CONFFILE}
+			backup_file $CONFFILE
+            sed -i "s/^${OPTION}/#&/" ${CONFFILE}
     fi
 }
 
@@ -72,9 +72,11 @@ apply_centos () {
     if [ $FNRET = 0 ]; then
         ok "The signature of packages option is enable "
     elif [ $FNRET = 1 ]; then
+		backup_file $YUM_CONFFILE
         warn "Set to enabled signature of packages option"
         sed -i "s/$YUM_OPTION=.*/$YUM_OPTION=1/g" $YUM_CONFFILE
     else
+		backup_file $YUM_CONFFILE
         warn "Add $YUM_OPTION option to $YUM_CONFFILE"
         add_end_of_file $YUM_CONFFILE "$YUM_OPTION=1"
     fi