Apple Lossless Audio CODEC (ALAC), promotes itself OS Xright one of the most advanced operating systems in the world, however a simple one string of recently joined characters can block almost any application from OS X. Writing in a text field Fillet:/// and pressing the button Return of the keyboard will block almost any application, few of those made for Mac being able to understand that command and not close immediately. The command must be run with the capital letter F, otherwise it seems that it will not work again Apple has been warned regarding the existence of his bug.
Of course, few people will ever run that command, but if someone tries to convince you to run it, now you know that it will block the applications on your Mac.
