What is a DNS Greywall?
A DNS Greywall uses observation data and reputation intelligence to determine immediate access to domains and host names. Greywalls are designed and tuned to mitigate real-time cyber-attacks where end-users and endpoints attempt to connect to phishing sites, ransomware downloads, malware commands, and control. Greywalls reduce risk by limiting unwitting end-users from temporarily interacting with domains, host names, and URLs with zero histories, reputation, or generated by an algorithm.