How to report a player who is threatening with harming another person or a place
What to do if you want to report the infringement of Blizzard's copyright or you are looking to obtain a license to use Blizzard's intellectual property
What to do if you're getting harassed by a newly added friend.
Troubleshooting reports about spam friend requests
How to submit feedback or report an issue with the matchmaking system
How to identify and report suspicious communications received by mail, text, or in-game chat.
Security software which can be used to resolve virus and malware infections.