Twitter has official Trademark violation and attribution guidelines.  Their trademark rules include info about cybersquatting and their attribution guidelines refer to one of Twitter’s most coveted features: the retweet.

Twitter’s Trademark policy states:

Accounts with clear INTENT to mislead others will be immediately suspended; even if there is no trademark infringement, attempts to mislead others is tantamount to business impersonation.

As more companies realize Twitter’s potential and attempt to claim their usernames, some brands may find their name is already taken.  If your company is enduring a trademark violation on Twitter, check out the rest of the guidelines first before reporting anything.  Then you can submit a request from the Twitter Support home page.

And how about those people that retweet a post without attribution?

read more The Legal Side of Twitter