What is the bigger story here? The fact that China actively is gathering intelligence in an offensive manner or that the same US government agency has been hacked previously and still fails to protect its data.
If you think for one second our government is not doing the same thing to china think again.
http://www.cnn.com/2015/06/04/politics/federal-agency-hacked-personnel-management/
This story is tiresome. In the private sector companies retain way to much useless data and present a massive footprint to attack. Including legacy systems left on and disregarded years after they are needed, network device logs for devices they are not mandated by compliance to retain and metadata they do not use.
While Metadata in some ways is the lifeblood of companies like Google, for many companies it's purely a liability.
Building a secure network must include reducing your surface area and data that is not needed nearline.
ES.