diff --git a/advanced/Scripts/piholeDebug.sh b/advanced/Scripts/piholeDebug.sh
index 1f12e868..ebab375a 100755
--- a/advanced/Scripts/piholeDebug.sh
+++ b/advanced/Scripts/piholeDebug.sh
@@ -1394,7 +1394,7 @@ curl_to_tricorder() {
 upload_to_tricorder() {
     local username="pihole"
     # Set the permissions and owner
-    chmod 644 ${PIHOLE_DEBUG_LOG}
+    chmod 640 ${PIHOLE_DEBUG_LOG}
     chown "$USER":"${username}" ${PIHOLE_DEBUG_LOG}
 
     # Let the user know debugging is complete with something strikingly visual
diff --git a/advanced/Scripts/piholeLogFlush.sh b/advanced/Scripts/piholeLogFlush.sh
index 60d5856b..3473fad5 100755
--- a/advanced/Scripts/piholeLogFlush.sh
+++ b/advanced/Scripts/piholeLogFlush.sh
@@ -46,7 +46,7 @@ if [[ "$@" == *"once"* ]]; then
         # moved file (it will have the same file handler)
         cp -p /var/log/pihole/pihole.log /var/log/pihole/pihole.log.1
         echo " " > /var/log/pihole/pihole.log
-        chmod 644 /var/log/pihole/pihole.log
+        chmod 640 /var/log/pihole/pihole.log
     fi
 else
     # Manual flushing
@@ -59,7 +59,7 @@ else
         echo " " > /var/log/pihole/pihole.log
         if [ -f /var/log/pihole/pihole.log.1 ]; then
             echo " " > /var/log/pihole/pihole.log.1
-            chmod 644 /var/log/pihole/pihole.log.1
+            chmod 640 /var/log/pihole/pihole.log.1
         fi
     fi
     # Delete most recent 24 hours from FTL's database, leave even older data intact (don't wipe out all history)
diff --git a/advanced/Templates/pihole-FTL.service b/advanced/Templates/pihole-FTL.service
index 11bbe1c9..941f1ee0 100644
--- a/advanced/Templates/pihole-FTL.service
+++ b/advanced/Templates/pihole-FTL.service
@@ -71,12 +71,13 @@ start() {
     [ ! -f "${FTL_PID_FILE}" ] && install -m 644 -o pihole -g pihole /dev/null "${FTL_PID_FILE}"
     [ ! -f "${FTL_PORT_FILE}" ] && install -m 644 -o pihole -g pihole /dev/null "${FTL_PORT_FILE}"
     [ ! -f /var/log/pihole/pihole-FTL.log ] && install -m 644 -o pihole -g pihole /dev/null /var/log/pihole/pihole-FTL.log
-    [ ! -f /var/log/pihole/pihole.log ] && install -m 644 -o pihole -g pihole /dev/null /var/log/pihole/pihole.log
+    [ ! -f /var/log/pihole/pihole.log ] && install -m 640 -o pihole -g pihole /dev/null /var/log/pihole/pihole.log
     [ ! -f /etc/pihole/dhcp.leases ] && install -m 644 -o pihole -g pihole /dev/null /etc/pihole/dhcp.leases
     # Ensure that permissions are set so that pihole-FTL can edit all necessary files
     chown pihole:pihole /run/pihole /etc/pihole /var/log/pihole /var/log/pihole/pihole-FTL.log /var/log/pihole/pihole.log /etc/pihole/dhcp.leases
     # Ensure that permissions are set so that pihole-FTL can edit the files. We ignore errors as the file may not (yet) exist
-    chmod -f 0644 /etc/pihole/macvendor.db /etc/pihole/dhcp.leases /var/log/pihole/pihole-FTL.log /var/log/pihole/pihole.log
+    chmod -f 0644 /etc/pihole/macvendor.db /etc/pihole/dhcp.leases /var/log/pihole/pihole-FTL.log
+    chmod -f 0640 /var/log/pihole/pihole.log
     # Chown database files to the user FTL runs as. We ignore errors as the files may not (yet) exist
     chown -f pihole:pihole /etc/pihole/pihole-FTL.db /etc/pihole/gravity.db /etc/pihole/macvendor.db
     # Chown database file permissions so that the pihole group (web interface) can edit the file. We ignore errors as the files may not (yet) exist