We ("the company" but not me personally anymore) still access our legacy customers via cu and do data transfers with uucp. Some (more forward thinking) customers now have internet access via ssh. Or VPN to their network and telnet to the server. And some allow internet access via telnet (no, I won't tell you who those are).
Comment on Re: The last time I used a dial-up modem was...
And some allow internet access via telnet (no, I won't tell you who those are).
You amuse me. The meme "telnet is insecure" is not inaccurate but it is rather incomplete. Telnet is only insecure if you've got a "man in the middle". If you've got that, "he" already knows who those clients are. :)