I was a target for the same hacker my former friend was dealing with, so I decided to combine Avast and Bitdefender together.
I have decided to strengthen my security details, and honestly, Bitdefender might be able to stop hundreds of attacks against me.
I may use Avast to scan my computer and Bitdefender to block future attacks, but possibly block the hacker's IP address if it was even possible.
I use Bitdefender Free and Avast Free together.