An anonymous reader writes: Last year Aaron Swartz was indicted on four felony counts for allegedy stealing millions of academic journal articles from JSTOR. Today, Federal prosecutors piled on nine additional felony charges. The charges (PDF) are mostly covered under the 1984 Computer Fraud and Abuse Act, and are likely to test the legislation's limits. 'The indictment accuses Swartz of repeatedly spoofing the MAC address — an identifier that is usually static — of his computer after MIT blocked his computer based on that number. The grand jury indictment also notes that Swartz didn’t provide a real e-mail address when registering on the network. Swartz also allegedly snuck an Acer laptop bought just for the downloading into a closet at MIT in order to get a persistent connection to the network. Swartz allegedly hid his face from surveillance cameras by holding his bike helmet up to his face and looking through the ventilation holes when going in to swap out an external drive used to store the documents. Swartz also allegedly named his guest account "Gary Host," with the nickname "Ghost."'