To learn what the NSA can glean from metadata, Stanford students developed Metaphone, an app that analyzes phone records. How sensitive was the uncovered info? CNET's Sumi Das reports.
Make sure you're not communicating more than you intend to when sharing files and uploading images by excising some of the data about your data.
A study conducted by Stanford University graduate students has demonstrated that a lot of personal information can be gleaned just based on the phone calls you make.
The former head of the CIA has said "we kill people based on metadata", but as Australia introduces new data retention laws, the country's security chief says he's "not quite sure" what the fuss is about. So what is the truth behind data retention, and why does it matter?
BitTorrent's new instant messaging program doesn't store metadata and offers end-to-end encryption.
As Pandora signs its first direct deal with labels, CEO Brian McAndrews speaks out for the first time since joining the Web radio service in September.
Pandora's first ever direct deal with labels marks a new age for artist relations at the No. 1 streaming-music service and may usher Pandora into a world of long-term opportunity.
In a letter to the president, US Sens. Al Franken and Dean Heller call for stronger transparency in the USA Freedom Act.
Thanks to a three-decade-old executive order, researchers say, Fourth Amendment protections against warrantless domestic surveillance may not be as strong as first thought.
In the skies above the NSA's data center in Bluffdale, Utah, a lone airship protests mass government surveillance.