In the latest revelations from US intelligence leaker Edward Snowden, classified documents show the NSA and Britain's Government Communications Headquarters are working to snatch location and other sensitive information by exploiting "leaky" smartphone apps such as Google Maps or mobile versions of Facebook, Twitter and other services, media wrote.
Previous media leaks have shown that the NSA sifts through phone records, SMS text messages, online games and other Internet traffic in its surveillance of terror suspects and other intelligence "targets."
Each time someone opens an application, whether to play the popular game Angry Birds or check out Google Maps, the eavesdropping agencies can vacuum up data that reveals the user's location, age, personal address list and other information, according to the media.
In one top secret NSA slide from 2010, an agency analyst is clearly excited at the espionage opportunity offered by the smart phone applications. The slide is titled "Golden Nugget!" and describes a "perfect scenario" in which a "target" uploads a photo to a social media site using a mobile phone.
The scope of the spying on apps is unclear, as well many details of the espionage, the newspaper said. When asked about the report, the NSA did not deny the account but reiterated, as it has for months, that the agency is not out to spy on ordinary people and is respectful of privacy rights.
"The communications of people who are not valid foreign intelligence targets are not of interest to the National Security Agency," spokeswoman Vanee Vines said in a statement. "Any implication that NSA's foreign intelligence collection is focused on the smartphone or social media communications of everyday Americans is not true," she said.
"We collect only those communications that we are authorised by law to collect for valid foreign intelligence and counterintelligence purposes, regardless of the technical means used by the targets," she added.
The NSA's funding for the program has quadrupled since 2007, from USD 204 million to USD 767 million, according to a secret Canadian analysis, media said.