Some Smartphones Turn the Microphone On to Listen for Keywords in Conversations in Order to Serve Up Effective Online Ads

Now listen up.

A couple of months ago I was lounging on my couch watching TV and snacking on Stacy’s Pita Chips. The cinnamon sugar ones are my favorite —they’re just sweet enough to feel like a dessert, but they have a satisfying crunch almost like a potato chip. During a commercial, I started to scroll through Instagram on my phone, and almost immediately I found myself looking at a promoted post for Stacy’s pita chips.

It’s not that strange to see an ad on Instagram these days — in fact, some are so stealthily designed they look like they could be actual posts from friends. But I’d never seen an ad for Stacy’s anywhere that I could remember, let alone on Instagram. And now suddenly I’m eating them and they pop up on my screen.

I put the bag down and immediately texted a friend with whom I often joke that our phones are listening to us. We’d long since accepted the fact that when we Googled a product or even talked about it out loud, we’d end up seeing it advertised on Instagram or Facebook sooner or later. It became a bit of a nihilist joke — welp, our algorithm overlords are at it again. *shrug*

But this time it really kind of freaked me out — I hadn’t said anything about Stacy’s out loud, I’d simply been crunching on them. Did Instagram have some kind of access to my debit card to know what I’d bought? Could it tell what I was eating by the crunch?

Admittedly I was getting a bit paranoid. But apparently not overly so. One cybersecurity researcher from Australia recently made headlines when he warned that our phones really are listening to us in an effort to better target ads.

Most people who have a smartphone also have “virtual assistants” with them all the time. Usually you have to come out and ask Google or Siri to look something up for you or tell you the weather, but researcher Peter Henway points out that in order to hear those commands, Google and Siri have to be listening all the time.

According to Apple and Google, these virtual assistants ignore everything but certain trigger words, but Henway claims that the rest of the words we say around our phones are accessible to other apps that could be using them to push us ads.

“Whether it’s timing or location-based or usage of certain functions, [apps] are certainly pulling those microphone permissions and using those periodically,” Henway recently told Vice. “All the internals of the applications send this data in encrypted form, so it’s very difficult to define the exact trigger.”

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