The web hack is actually a malicious code that is hiding inside a web page and gets triggered when visited using the stock browser (except Google Chrome) of a TouchWiz-based phone. The malicious code then spawns the dialer and enters a bad USSD code with the sole purpose of nuking your device back to its factory default.
Now, if you fell victim to this hack, how you’d probably wish you had iTunes that have your data and media files intact, in this case that you have to restore your phone.
And don’t even get me started with Samsung Kies — one word, UNRELIABLE. In my experience, Samsung Kies did not work half of the time because of drivers not found. This happened to me both in Mac and PC.