Fravia is a pseudonym/handle for an European cracker who is probably best known for his web archive of reverse engineering techniques and papers. Mirrors of the old web site (fravia.org) still exist (see, e.g., Internet Archive), though Fravia has publicly requested their removal in favor of his new web-searching-centric sites. He leads people from becoming 'crackers' to reversers, both in the sense of software reverse engineering, and as an ideology. Wikipedia
The definitive Wikipedia entry for Fravia. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Fravia