diff --git a/.gitignore b/.gitignore
index 954aced..f995423 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .idea
 config.xml
 WiiSOAP
+tmp/
diff --git a/config.example.xml b/config.example.xml
index 012b991..694d0e6 100644
--- a/config.example.xml
+++ b/config.example.xml
@@ -20,4 +20,8 @@
     This is useful when testing CAS directly.
     It is only functional when debug is enabled. -->
     <NoAuth>false</NoAuth>
+    <!-- Set to true to enable serial number
+    whitelisting by reading a newline separated file
+    located at whitelist.txt. -->
+    <Whitelist>false</Whitelist>
 </Config>
diff --git a/ias.go b/ias.go
index 36a54c9..5dd4e28 100644
--- a/ias.go
+++ b/ias.go
@@ -130,7 +130,7 @@ func syncRegistration(e *Envelope) {
 		e.Error(7, "An error occurred querying the database.", err)
 	}
 
-	if !slices.Contains(getWhitelistedSerialNumbers(), serialNumber) {
+	if whitelistEnabled && !slices.Contains(getWhitelistedSerialNumbers(), serialNumber) {
 		// Since HTTP server runs on a separate Goroutine, this won't shut off the server,
 		// rather kill communication with the requesting console
 		panic(err)
@@ -167,7 +167,7 @@ func register(e *Envelope) {
 		return
 	}
 
-	if !slices.Contains(getWhitelistedSerialNumbers(), serialNo) {
+	if whitelistEnabled && !slices.Contains(getWhitelistedSerialNumbers(), serialNo) {
 		// Since HTTP server runs on a separate Goroutine, this won't shut off the server,
 		// rather kill communication with the requesting console
 		panic(err)
diff --git a/main.go b/main.go
index 1fc5e91..86bb079 100644
--- a/main.go
+++ b/main.go
@@ -42,6 +42,7 @@ var pool *pgxpool.Pool
 var ctx = context.Background()
 var isDebug = false
 var ignoreAuth = false
+var whitelistEnabled = false
 
 // checkError makes error handling not as ugly and inefficient.
 func checkError(err error) {
@@ -72,6 +73,8 @@ func main() {
 		ignoreAuth = readConfig.NoAuth
 	}
 
+	whitelistEnabled = readConfig.Whitelist
+
 	// Start SQL.
 	dbString := fmt.Sprintf("postgres://%s:%s@%s/%s", readConfig.SQLUser, readConfig.SQLPass, readConfig.SQLAddress, readConfig.SQLDB)
 	dbConf, err := pgxpool.ParseConfig(dbString)
diff --git a/structure.go b/structure.go
index 177b865..1de9017 100644
--- a/structure.go
+++ b/structure.go
@@ -39,8 +39,9 @@ type Config struct {
 	SQLPass    string `xml:"SQLPass"`
 	SQLDB      string `xml:"SQLDB"`
 
-	Debug  bool `xml:"Debug"`
-	NoAuth bool `xml:"NoAuth"`
+	Debug     bool `xml:"Debug"`
+	NoAuth    bool `xml:"NoAuth"`
+	Whitelist bool `xml:"Whitelist"`
 }
 
 // Envelope represents the root element of any response, soapenv:Envelope.