The targeted apps have included the mobile versions of Facebook, Yahoo’s Flickr, LinkedIn and Twitter, according to reports in The New York Times, the Guardian and ProPublica.
If, like our reader, you find Facebook just too creepy, there's a way out. Chris Breen explains.
Eight companies, from Apple to Yahoo, want world governments to revisit their surveillance laws.
By March, Yahoo users will have the option to encrypt all data flow to and from the Web company's services.
In an attempt to introduce more transparency to government requests, Apple's published a report on how many times it's been asked to divulge user or device information in the first half of 2013.