Telnet è scomparso improvvisamente. Chi ha chiuso la porta 23? - Buongiorno 315

On January 14, 2026, global Telnet traffic dropped 65% in one hour. No announcement, no press release. Someone pulled the plug on the first application protocol of ARPANET, the network that later became the Internet, and they did it six days before the world knew why. In this episode: the history of Telnet since 1969, how the protocol really works (from RFC 854), the bug that remained hidden for 11 years, and the mystery of the coordinated collapse. Sources and insights: GreyNoise Grimoire: https://www.labs.greynoise.io/grimoir... GreyNoise "f Around and Find Out": https://www.labs.greynoise.io/grimoir... RFC 854: https://www.rfc-editor.org/rfc/rfc854 The Register: https://www.theregister.com/2026/01/2... The Hacker News: https://thehackernews.com/2026/01/cri... TXOne Networks: https://www.txone.com/blog/cve-2026-2... Dark Reading: https://www.darkreading.com/threat-in... My app: https://play.google.com/store/apps/de... 00:00 Intro 01:31 What is Telnet and how does the protocol work 06:18 The bug that slept for 11 years 11:32 The day Telnet died 19:26 Outro #telnet #security #arpanet #protocols #greynoise