RE: Pension.16 Sep 2020 14:20
Milli. Most will, like I did when working for BT, use a VPN, virtual private network, to establish the link. That in my case was, a laptop that was identified by its MAC address that is unique, my ID and password, that changed every 28 days and a unique number generated by a token, much like some banks do if you have a home card reader. After that access to systems was incepted and used ID and other passwords. So it is fairly secure from your average hacker. There are simpler ways but most would at least use a VPN link as the very least.