news.yahoo Reports; Who knew hackers could be so darned cute? But it's not just 10-year-old Californian innovator, artist, and athlete known as CyFi's looks (and suave shades) that have people talking. She also appeared at the DefCon Kids hacker conference over the weekend to give a presentation titled "Apps — A Traveler of Both Time and Space (And What I Learned About Zero-Days and Responsible Disclosure)." In the talk, she revealed a flaw in the programming of both Android and iOS apps that allows players to cheat at some games.

Like many youngsters (and not-so-youngsters…), CyFi liked playing farming games on her phone, but didn't like how long it took to grow things in the game.

So like any good hacker, she found a way around it. The exploit CyFi discovered actually uses a technique that's almost as old as computer gaming itself: changing the device's internal clock to alter the time in the game, and make it faster to do things that normally take a long time. This is called a "zero-day flaw", and it's not quite as simple as just changing the clock; developers did plan and guard against anyone doing something that obvious.

How exactly do you exploit the zero-day flaw, then, and which games are vulnerable? Also like any responsible hacker, CyFi isn't telling. Instead, she's giving the companies that create the games a chance to close the loophole and fix the vulnerability she found before more malicious minds can take advantage of it.