MYSQL for webplayer

Hello,

I am making interactive website using unity engine. I scripted the login system core based on variables. Its very simple. I need to learn how to use mysql datas rather than simple UnityScript variables. I read some posts about mysql so people saying that its unsecure because when people crack your application they can learn your mysql ip and password etc. I wont have any problems like that since it is going to be only webplayer. So how can i use mysql with my login panel?

 #pragma strict
 var username : String = "Username";
 var password : String = "Passwd";
 var LoginAuth : boolean = false;
 var ShowLP : boolean = true;
 
 function OnGUI () {
 if (ShowLP == true) 
 {
 
 username = GUI.TextField (Rect (10, 10, 200, 20), username, 25);
 password = GUI.PasswordField (Rect (10, 40, 200, 20), password, "*"[0], 25);
 
     if (GUI.Button (Rect (10,70,60,25), "Login")) 
     {
         if (username == "esporta" && password == "emre2442")
         {
         print ("User Authed");
         LoginAuth = true;
         ShowLP = false;
         }
     }
 }
 
 
 if (ShowLP == false)
 {
 GUI.Box (Rect (10,10,150,100), "Profile");
 }
 
 
 }