I'm going to reference Derek Prince on the subject of witchcraft, in that witchcraft, at its basic form, is the attempt to control people to do what you want by the use of any spirit which is not the Holy Spirit.
By the way, witchcraft can be quite a broad subject
Aspects of witchcraft,
1. the work of the flesh
- Galatians 5:19-20, expression of man's fallen nature (ex, desire to control people, using illegitimate means; manipulate, intimidate, and dominate)
2. evil spiritual power
Is it used today ... that's a definite yes.
I can say, without hesitation, that both aspects of witchcraft are still being used.
It is something Christians should not use or dabble in, but we need to be aware of it and know how to fight it.
In regards to using evil spirits, still very prevalent in some parts of the world, especially where my family originate - Southeast Asia.