Who let the data out?! Time for effective egress filtering!

We've seen way to many organizations have data breaches due to not having proper egress filtering configured. Many places are still only worried about what's making it's way into the network and aren't concerned about what's leaving the network. This could be the difference between an attacker making it into your network and an attacker leaving with your data. If they aren't able to get data out, there's no data loss and this limits the risk of the compromise.

http://blog.algosec.com/2015/09/dont-let-the-data-out-tips-for-effective-egress-filtering.html