So this happened. Today Government of Canada websites and even emails were hacked in a denial of service attack in protest of Bill C-51 - Canada's recent anti-terrorism law.
Anonymous left a message.claiming responsibility.
So, yeah. Via Globe and Mail;
A cyberattack crashed federal government websites and e-mail on Wednesday afternoon, Treasury Board President Tony Clement said.He said it was a denial-of-service attack on the gc.ca domain server, which rendered many federal government websites inaccessible and left many government e-mail accounts unusable.