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2026-01-14: The Day the telnet Died (www.labs.greynoise.io)
submitted 3 weeks ago by Bishma@discuss.tchncs.de to c/technology@lemmy.world
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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

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[-] adespoton@lemmy.ca 1 points 3 weeks ago

These days, not really, except that netcat has wider capabilities and so often triggers security alarms when used.

this post was submitted on 11 Feb 2026
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