rang and hungup when I answered. scam?

A scammer - caller (Indian lady) said from ??? company, my internet has been hacked for dangerous activites. I asked what do I do (just testing the water) and she said I have to turn on my computer then she will tell me what to do.......I asked her which one of my computers has the problem, and she hanged up.

rings, but then no answer

Answered but no one spoke and hung up