They may want to check if some network engineer got fired recently. Usually these sorts of things relate to a human problem rather than a technical attack.
Stephen Mikulasik -----Original Message----- From: NANOG [mailto:nanog-boun...@nanog.org] On Behalf Of Rashed Alwarrag Sent: Monday, April 13, 2015 3:29 PM To: nanog@nanog.org Subject: Cisco Routers Vulnerability Hi Today we have a lot of customers report that their Cisco routers got a root access and the IOS got erased , is there any known vulnerability in cisco products thats they report in their Security alerts about this recently ? is there any one face the same issue ? Regards