Preventing os.date manipulation

Hello,

I am making an app that gives the user a daily reward, however, at the moment the user can just set the clock a day forward and get more money. How can I stop this? I was thinking last resort I could call a website server for the date…but there has to be a better way. Is there any way to detect a date ju,mp and prevent people from just spamming my daily reward?

Just so you know, my code uses date.day, sets a variable as the previous day, then basically checks to makes sure it is no longer that day.

Thank you! [import]uid: 59735 topic_id: 32414 reply_id: 332414[/import]