[citrin_ru]

Have you ever seen a hospital, a bank, a power plan to expose telnetd to the public internet in the last 20 years? It should be extremely rare and should be addressed by company’s IT not by ISPs.

[sznio]

These are the institutions I would most expect to do that.

Well, maybe not a bank.

[_ink_]

Probably Tier 1 providers have some insight on this.