In the Skype support forums, "shocked" users had said private instant messages had been re-sent to other contacts. Skype then admitted messages sent between two users were being copied to a third party, in "rare circumstances". The net-calling firm said it was working on a fix for the bug, which appears to have been introduced in an update to Skype applied in June. Some users said they would stop using the service because of the glitch. It hoped to put out a software update in the "next few days" to fix the problem.