The Washington Post

New Facebook feature is a friendly reminder that your smartphone can eavesdrop on you


A new feature in Facebook's mobile app is a timely reminder of the eavesdropping potential of smartphones.

The feature uses the built-in microphones in mobile devices to determine what music a user is listening to or what television show or movie they are watching. The company unveiled the feature Wednesday and said it would be available for Android and iOS users in the United States in coming weeks.

The feature doesn't operate automatically, and the user must turn it on for it to work, said Facebook product manager Aryeh Selekman. But if a user leaves the feature turned on, it will listen as they use the Facebook app to write status updates, upload photos or respond to messages from friends.

However, "no sound is stored and you’ll always get to choose whether you post to your friends," Selekman said in a blog post.

Facebook said the feature can't identify background noises or conversations. Instead it can only listen and find matching content, similar to some other music match apps already on the market such as Shazam or SoundHound. 

The new feature builds on another recent addition to the Facebook platform. Last year, the company added emoticons that symbolize activities or emotions to its status updates. Many industry observers have questions whether that move was meant to make it easier for Facebook to classify user activities and interests for advertisers.

According to Selekman, users have shared more than 5 billion status updates using the emoticons since they were introduced.

While Facebook's new feature sounds rather innocuous in its current form, it also highlights one of the risks of walking around with the equivalent of a high-tech tracking device in your pockets at all time: Someone could be listening in -- whether it be a legitimately installed app, hackers or law enforcement agencies.

Andrea Peterson covers technology policy for The Washington Post, with an emphasis on cybersecurity, consumer privacy, transparency, surveillance and open government.



Success! Check your inbox for details. You might also like:

Please enter a valid email address

See all newsletters

Show Comments
Most Read



Success! Check your inbox for details.

See all newsletters

Your Three. Videos curated for you.
Play Videos
This isn't your daddy's gun club
A look inside the world of Candomblé
It's in the details: Five ways to enhance your kitchen makeover
Play Videos
A fighter pilot helmet with 360 degrees of sky
The rise and fall of baseball cards
Is fencing the answer to brain health?
Play Videos
John Lewis, 'Marv the Barb' and the politics of barber shops
How to prevent 'e-barrassment'
The art of tortilla-making
Play Videos
Circus nuns: These sisters are no act
How hackers can control your car from miles away
How the new credit card chip makes purchases more secure
Next Story
Hayley Tsukayama · May 21, 2014

To keep reading, please enter your email address.

You’ll also receive from The Washington Post:
  • A free 6-week digital subscription
  • Our daily newsletter in your inbox

Please enter a valid email address

I have read and agree to the Terms of Service and Privacy Policy.

Please indicate agreement.

Thank you.

Check your inbox. We’ve sent an email explaining how to set up an account and activate your free digital subscription.