Scary....
Potential risks of using Google's free DNS service
( cgisecurity.com/2009/12/risks-of-using-googles-free-dns-service.html?1 )
Google has announced that they are offering a free DNS service to anyone wanting to use it. Unfortunately the privacy concerns aren't being discussed in as much detail as I'd like, and people aren't asking why google would offer such a free service. Several points to consider
* Google can profile a given IP for which countries they visit, or which types of sites they prefer.
* Google can identify sites you visit that lack google analytics/google ads, allowing google to know everything you connect to.
* Google states they don't share the data with analytics or google ads, it doesn't seem to say it won't share this data with others.
* Google may see queries to internal hostnames on your local corporate intranet/lan when you attempt to visit an internal site.
* Google will be able to see the software products an IP uses, if those products perform web based updates.
* Google will be able to tell if you're infected with malware, if that malware contacts hostnames for payload updates. This allows google to know if you're backdoored/infected which hypothetically means this information could be used to gather a list of hacked hosts. It also gives them the potential to control the payloads used by bots not using payload verification/signing.