We have come to know through multiple users that Kaspersky antivirus software is detecting virus/trojan in Braina when you start speech recognition. If you face similar issues please don't worry as this is a false positive by Kaspersky (no other AV software has issues with Braina). You can simply create an exception in Kaspersky and continue using Braina. We also advice you to report this issue to Kaspersky as false positive.