Ethical Failure?

TLS provides customers with the option to have a landline phone. The number using the service is quite small (I think) and consists mainly of elderly people. The cost to the customer is not huge. However it is (I think ) a nice little earner for TLS.

Sadly, there are grubs/ crims out there who make money by conning (mainly) elderly people into thinking that their computer has a problem and then gaining control of the PC and hacking into it. They do this by cold-calling the landline phones and saying something such as " Hi, this is Telstra and we have noticed that your internet connection is running very slowly ...." Recentlly Ive had a posh Pommie voice electronic message "Hi, This is Telstra ... your NBN connection will be unavailable ... please call the following number for further details .... " . If I call the number I speak to an Asian-sounding person who will "assist" me with my PC.

Now I know that the customer can set up Caller Identification and no doubt other defences ... but its very inconvenient (and the calls can still be made) .

My point is ... doesnt Telstra have a role in stopping these grubs from ripping off the elderly? Surely from a marketing point of view the supplier (TLS) should be showing what a good corporate citizen it is by developing seamless controls which deter the criminals? Is it a case of ho-hum , it would cost money and its too difficult, and we dont care as long as we're getting oldies to pay for landlines?