109
2026-01-14: The Day the telnet Died (www.labs.greynoise.io)
submitted 9 months ago by to c/technology@lemmy.world
18 comments fedilink hide all child comments
 

On January 14, 2026, global telnet traffic observed by GreyNoise sensors fell off a cliff. A 59% sustained reduction, eighteen ASNs going completely silent, five countries vanishing from our data entirely. Six days later, CVE-2026-24061 dropped. Coincidence is one explanation.

The pattern points toward one or more North American Tier 1 transit providers implementing port 23 filtering

you are viewing a single comment's thread
view the rest of the comments
[–] 13 points 9 months ago*

It's an interesting write up... I'm a bit surprised there are/were that many internet facing telnetd instances online. Maybe it's just the sheer amount of ancient routers & such that were deployed with telnet enabled by default and are still plugged in and running to this day.

  • permalink
  • fedilink
  • source
    •