Dear user,
There's no mention of an antivirus in features or anywhere. You are expecting something that I don't offer, you will get disappointed all the time if you take from granted things that I don't mention neither offer.
An additional step to check for viruses/malware could be added, but as V3 doesn't have define any base OS I didn't pursue the intention of adding that check. V4 will explicitly define the OS where the software will available, making easy to provide this step either for me or for any third-party dev.
All these years the software has worked without an AV, you are overreacting the implicances of this.