Bitdefender detects Stockfish 6 as virus ???

[ernst]

I use also Bitdefender and some engines are detected, not as virus, but as problematic because they use lots of cpu power. So it's necessary to put them in the exception list.

This.

[Ponti]

I don´t use Fire and I stopped to use Houdini a long time ago, when I discovered that Stockfish was stronger in the endgame.