called it back and it says the number you have reached has been disconnected

I trhink the are fishing to grab access to your computer, and I don not know why?
Be carefull.

Semble vouloir prendre controle de votre ordinateur. Ne pas les écouter et appeler votre fournisseur de service internet.

I received a call this morning.. He said ''Your computer....'' and nothing more!

Got a call from this number saying I downloaded a file on my PC that is dangerous. I replied Really. So I suppose you ant me to let you in to fix it. They immediately hung up.

I got a call from this number while I was driving.  When I got to my destination I tried to call back and I got a message about the number. Not available, not connected. something like that. So I decided to check it out and found you.