Caller: Someone that said they are from Telstra

This lady called me and said she is from Telstra, saying I'm using an open Internet connection which is vulnerable for attacks, and she requested my IP address. When I asked what my address is (coz this info will be available if she is really from Telstra), she hanged off the phone. Pls be aware of this scammer.

The same here. Asked about access to my computer. I asked for an official email because they should have my email on file. She hung up