On Wednesday, April 18, at approximately 16:00 Eastern Time, U.S. Federal authorities removed a server from a colocation facility shared by Riseup Networks and May First/People Link in New York City. The seized server was operated by the European Counter Network ("ECN"), the oldest independent internet service provider in Europe, who, among many other things, provided an anonymous remailer service, Mixmaster, that was the target of an FBI investigation into the bomb threats against the University of Pittsburgh.|
"The company running the facility has confirmed that the server was removed in conjunction with a search warrant issued at the request of the FBI," said May First/People Link director Jamie McClelland. "The server seizure is not only an attack against us, but an attack against all users of the Internet who depend on anonymous communication." "The FBI is using a sledgehammer approach, shutting down service to hundreds of users due to the actions of one anonymous person," said Devin Theriot-Orr, a spokesperson for Riseup. "This is particularly misguided because there is unlikely to be any information on the server regarding the source of the threatening emails.""Furthermore, the network of anonymous remailers that exists is not harmed by taking this machine. So we cannot help but wonder why such drastic action was taken when authorities knew that the server contained no useful information that would help in their investigation."
The FBI purportedly seized the server because it was hosting an anonymous remailer called Mixmaster. Anonymous remailers are used to send email anonymously, or pseudonymously.
Riseup Birds explanation for riseup users - "Server Siezure (Don't panic)"