] A pair of students were blocked by a federal court from
] presenting information at a Georgia security and hackers'
] conference on how to break into and modify a university
] electronic transactions system.

] "The temporary restraining order pointed out that the
] irreparable injury to Blackboard, our intellectual
] property rights and clients far outweighed the
] commercial speech rights of the individuals in
] question," said Michael Stanton, a Blackboard spokesman.
]
] The company claims that the speech being blocked is
] commercial speech because the students were a "small
] competitor" to Blackboard. One of the students,
] Georgia Institute of Technology's Billy Hoffman, had
] threatened to give away code allowing any computer to
] emulate Blackboard's technology, the company claims.

] Although an initial cease and desist letter sent to the
] Interz0ne conference organizers hinted that the students
] may have violated the DMCA, the complaint that resulted
] in the temporary restraining order did not touch on that
] copyright law.

Court blocks security conference talk | CNET News.com