Thousands gather around the world for Anonymous's Million Mask March
Masked protesters gathered for a variety of reasons.
Why Anonymous celebrates Guy Fawkes Day
It all has to do with a failed plot to bomb the British Parliament.
Anonymous hacktivists deface Donald Trump's website with a tribute to Jon Stewart
The hackers thanked Stewart for a 'steadfast dedication to the irony and power of Truth.'
Anonymous claims cyberattack on Canadian government
Anonymous says it's protesting a new anti-terrorism law.