> On Dec 8, 2020, at 14:17, A. E. Spencer-Reed <easrng at gmail.com> wrote: > > Well, not telnet, because of TLS, but openssl-s_client at least. TLS-based Telnet Security https://tools.ietf.org/html/draft-ietf-tn3270e-telnet-tls-00 But yes, some sort of TLS layer of one kind or another :)