"Cadillacman" and "hulk" are two students at North Carolina universities, and despite attempts by the Recording Industry Association of America, their real identities will stay private.
A federal judge ruled the universities do not have to help identify the students, who allegedly downloaded music using the school's computer systems.
While officials at UW-Eau Claire say they receive more than 200 complaints from the RIAA each semester, they deal with students directly.
"We identify who the alleged offender is by their IP address," says Bob Rose, the director of libraries. "They are asked to comply by removing the infringing files within 72 hours."
If students fail to respond they could face disciplinary action from the associate dean, but Rose says it rarely gets to that point.
UWEC has not been subpoenaed to reveal students' identities.