13. The method of claim 8 , wherein the classification determined for comparing the similarity of the website to the known websites includes being associated with unauthorized content.
8. The method of claim 1 , wherein comparing the hash signature of the DOM object to the known hash signature of the DOM object associated with the known website further comprises: determining a classification for comparing a similarity of the website to known websites; identifying a plurality of known hash signatures, each of the plurality of known hash signatures corresponding to a different one of DOM objects, wherein each of the DOM objects corresponds to a different one of the known websites associated with the classification, and wherein the plurality of known hash signatures is identified by searching a database of hash signatures for each of the plurality of known hash signatures classified as being associated with the classification; calculating a similarity measurement of the hash signature of the DOM object for the classification; comparing the similarity measurement of the hash signature of the DOM object to a similarity threshold associated with the classification; and reporting the website as being associated with the classification based on the determining that the similarity measurement is over the similarity threshold associated with the classification.