Windows 8 apps are claimed to be hacked easily !

Several reports by experts claim that WP8 applications can be easily hacked.

Developers should be cautious when they build apps  due to that matter. Reports throw up several examples on how apps can be manipulated.

For instance, data files containing the prices of various upgrades could be edited with Notepad. Thus, Hackers could cheapen these upgrades and make the in-game currency last a lot longer than normal. 

Using XML to store this kind of data makes it extremely easy to edit compared to patching binaries in a hex editor, the report said.

However, Microsoft is preventing side-loading by requiring all Windows Store apps to be digitally signed by Microsoft. Also Application binaries can't be modified or hacked, without invalidating their digital signatures,but the XML files aren't following the same protection pattern.

So developers that make a living though programming should consider the "Safety matter" through application production. (maybe by including code obfuscation methods etc)