Sobre el uso de @font-face en CSS [...] In order for this to work, that font file needs to be hosted in a publically-accessible directory. This means that fonts will be just as easy to “steal” as a CSS file or an image is. Just figure out the path, pop it in a web browser and save it. We’ve gotten used to this when it comes to the code we write and the images we create. Entire web pages can be saved directory off the web with almost no effort whatsoever. But when it comes to fonts, it gets a little trickier. Font foundries charge big money for their fonts, and they don’t want them to be so easy to steal.
