TCS.com hack exposes difference between Google public DNS and open DNS services

TCS.com belonging to Tata Consulatcny Services was hacked earlier todaya and it is claimed to be a attack over a DNS loophole.

Using nslookup, the diiference between Google public DNS and open DNS were studied.

On using nslookup for openDNS the result for both tcs.com and www.tcs.com were the same.

On using nslookup for Google public DNS the result for both tcs.com and www.tcs.com were different.

For www.tcs.com the Address was 205.178.152.154 while for tcs.com it was 216.15.200.140.

Thanks to Albins for pointing out the difference.