Flash games hack, score is 49700?? How to improve flash games security?

Question

I have 2 flash games (written in as3). Both the highscore value being hacked. The normal range of each game score is not more than 5000 (normal users, will only get 2000 - 3000

Answer 1

It's not really possible to make your score validation secure if it runs entirely on the client side. You have to do at least part of it on the server side for it to be even remotely secure. I see 2 ways of doing this:

• you send periodic score updates to the server and on the server side you check that the score didn't jump "too much" (to be defined in the context of your game). If it "jumped" you can safely assume the player is hacking.

• you send the entire game movement sequence (along with any random spawns or whatever ai events) to the server with the score at the end and verify that the score is actually accurate. This will obviously not work for every game, but for some games it can work. You didn't say anything specific about your game so I'll leave this here.