In reply to No-IP.

Cisco appreciates your response to this blog post. From the data that we see through Cisco Security Intelligence Operations, it's clear that the features of dynamic DNS, as described in our post, lend themselves to convenience that is welcome in abusive as well as legitimate circumstances. This issue is not unique to No-IP, but as we demonstrated is a problem that occurs on a wide variety of DDNS providers.

We certainly appreciate the offer to collaborate on this, and we'll reach out privately to start that conversation.

Seth Hanford
Manager, Cisco TRAC