jQuery secure connection
I have been searching around but haven't quite found my answer. If I use jQuery on my mobile app and connect to an api/page to verify a login, is this secure, can anyone intercept the data? I have been reading things on encrypting the data that is being passed to my server and creating token keys being passed back and forth but if someone can see the data transfer it would be easy to post data to my PHP script right? Any help would be much appreciated. example below:
$.ajax({
type: "POST",
cache: false,
url: "https://www.mysite.com/verifylogin.php",
dataType: "html",
data: {username : "username",
password : "password"
},
success: function (response) {
//do something here with response
},
error: function () {
//do something here if error
}
});