Seems like it this is pretty ineffective. The group already moved subnets once, they will likely do this again, all Cisco/L3 have done is slow them down a bit. Stephen Mikulasik -----Original Message----- From: NANOG [mailto:nanog-bounces@nanog.org] On Behalf Of Sameer Khosla Sent: Thursday, April 09, 2015 9:31 AM To: nanog@nanog.org Subject: Cisco/Level3 takedown Was just reading http://blogs.cisco.com/security/talos/sshpsychos then checking my routing tables. Looks like the two /23's they mention are now being advertised as /24's, and I'm also not sure why cisco published the ssh attack dictionary. It seems to me that this is something that if they want to do, they should be working with entire service provider community, not just one provider. Thanks Sameer Khosla Managing Director Neutral Data Centers Corp. Twitter: @skhoslaTO