This week, government and industry representatives are convening at the annual AFCEA Homeland Security Conference in Washington, D.C., to discuss among other issues, cybersecurity and how to protect the government from hacker groups like Anonymous.

Cybersecurity experts at the conference offered many ways to prevent attacks, but shutting down whole systems wasn't one of them.

The conference, however, deactivated the wireless connection in the Ronald Reagan International Trade Center Building (where the conference is being held) in response to a threat from Anonymous, an AFCEA staff member announced at the conference.

Anonymous has claimed responsibility for breaching dozens of government websites. This past August alone, the group hacked into 70 local law enforcement computer systems.