I found this program called Winauth which claims to do the same as the official battlenet authenticator.
Is this program safe to use or not, because i don't have a telephone which is compatible with the smartphone app ??
Threats of violence. We take these seriously and will alert the proper authorities.
Posts containing personal information about other players. This includes physical addresses, e-mail addresses, phone numbers, and inappropriate photos and/or videos.
Harassing or discriminatory language. This will not be tolerated.