Videotron says it will respect a court order to turn over information about one of its subscribers.
The order comes following legal action by professional golfer Phil Mickelson, who is seeking the identify of a person who allegedly posted "vicious" and defamatory comments about him online.
Mickelson took action in Quebec Superior Court, seeking to identify the author of "several highly defamatory statements posted by one or more individual on the Internet, in particular on a Yahoo! website, under the pseudonyms of 'Fogroller' and 'Longitude'.
"The postings suggest that plaintiff has an illegitimate child, that his wife has affairs and other similar vexatious statements that are absolutely untrue and, simply put, vicious," according to the complaint.
In his complaint, Mickelson says the San Diego Superior Court authorized him to subpoena Yahoo! for information about "Fogroller" and "Longitude."
Yahoo! responded to court actions in California, and provided an Internet protocol address connected with the posts; the Internet address is apparently registered to a Videotron subscriber
Reports indicate Mickelson is represented by Stikeman Elliott, a business law firm based in Canada, with offices around the world.
Videotron says it will respect the court order, it has does for other similar cases.
Internet users in Canada were caught up in such a case recently, when agents for the film The Hurt Locker also sought the identities of certain IP address holders in Canada in a suit claiming illegal downloads of the film.