The report by Spiegel states that they have gained access to top secret NSA documents informing them that the US intelligence agency has the capability to 'tap' into smartphones such as Apple's iPhone, BlackBerry devices and Google's Android OS devices.
According to the internal documents, "it is possible for the NSA to tap most sensitive data held on these smart phones, including contact lists, SMS traffic, notes and location information about where a user has been."
It is unclear whether the process is carried out remotely but accoding to the documents, experts have said they have gained access to a user's iPhone data via. the computer they have synced with.
By doing so they gain "scripts" that enable access to an additional 38 iPhone features.
The documents also reveal that the NSA has successfully hacked into BlackBerry devices, being able to "see and read SMS traffic," as well as gaining access to the BlackBerry mail system.
A full article will be published on Spiegel on Monday.
Project PRISM was revealed earlier this year by whistleblower Edward Snowden.
The initative by the NSA was allowing US authorities to mine data such as emails, search-engine history, chats and files.
It was uncovered that the NSA had acessed information from leading internet companies such as Google, Apple, and Microsoft.
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