What method is used by Cisco OpenDNS to help prevent attacks via iFrame?

What method is used by Cisco OpenDNS to help prevent attacks via iFrame?
A . Cisco OpenDNS cannot do anything to prevent this type of attack.
B . Cisco OpenDNS will run the requested web page in a sandbox environment.
C . Cisco OpenDNS can deny access to known malicious web sites.
D . Cisco OpenDNS will strip out malicious information from packets.

View Answer

Answer: C