CRN : Breaking News : Reporter's Notebook: Big Hack Attack On Tech Ed: "The real story out of Microsoft Tech Ed wasn't highlighted on stage but wreaked havoc on attendees nonetheless.
Reporters first noted an inability to link into VPNs from the show's press room on Monday, opening day of Tech Ed 2004 in San Diego. They were able to connect over wire connections to the 'Net, but access to VPNs was precluded and many could not access instant messaging either. Microsoft network support technicians eventually admitted that relevant ports were shut down to prevent hackers who were targeting the show.
A Microsoft executive later said that hackers had put out bounties--she mentioned $50,000--to disrupt the show network. She did not specify further."