What is DNS Poisoning & Why Should You Care?

DNS spoofing (or DNS cache poisoning) is a computer hacking attack, whereby data is introduced into a Domain Name System (DNS) name server’s cache database, causing the name server to return an incorrect IP address, diverting traffic to another computer or website (often the attacker’s).

DNS Poisoning is a common tactic hackers use to compromise systems and steal data. In fact, it is one of the MOST effective and dangerous methods that hackers use to damage your data, steal your identity, or infect your computer with viruses or Trojans.

Examples of DNS Poisoning entry points are: fake bank websites, fake email logins, fake social media sites,  fake UPS or Fedex sites, or fake pharmacy sites.

Asking your users to NOT click on the email or websites does not work.  The most effective method of preventing DNS poisoning is to use a 3rd party (off network) DNS sanitation service such as OpenDNS.

We think that OpenDNS is so important that Team MIS is installing this for FREE for every Greenlight Cloud customer.  If you have on premise servers and want to learn more or have questions on how to stop potential DNS Poisoning on your network, call Kary Faucher at 678-730-5527 to setup a 1:1 call with Lliam, or Scott to discuss your needs and  possible solutions for your network. You may also email her at: kfaucher@mis-solutions.com.


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