The U.S. National Security Agency has approved Samsung Electronics' Galaxy devices for use by government officials to hold classified information.

The four devices include Galaxy S4 and S5, Galaxy Note 3 and Galaxy Note 10.1 2014 Edition. This is on top of the NSA using the Boeing Black, a device developed by aircraft manufacturer, with a core focus on defense and security.

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The list of approved devices does not mean the NSA will deploy the devices to their own staff. It only means the Samsung Knox devices have been approved for use for U.S. government agencies, and are up to the standards of security set by the agency.

Samsung Knox offers an independent suite of applications and services under a secure layer of technology, built on top of Android. It has been approved by many government agencies, and continues to take ground from older enterprise providers like BlackBerry.

BlackBerry continues to be a leader in the enterprise front, with President Obama and other high officials in the U.S. using their older BlackBerry devices. Samsung wants to get in on this market, by creating a more functional and easier service, without losing the security side.

The demand for secure devices is high - even in the consumer sector - where devices like the Blackphone are getting attention. This is on top of Google and Apple both working on more encryption for their smartphones, to make them impassable.

South Korea has been a targeted country by the U.S. NSA spying, similar to China and Germany. After Huawei was banned from U.S. government contracts due to their affiliation with the Chinese government, it might be a while before Samsung Knox is the industry standard for NSA and other government contractors.

TagsSamsung Knox, U.S. Government, NSA, enterprise phones, Blackberry