Siri may be your personal assistant. But your voice is not the only one she listens to. Siri also helpfully obeys the orders of any hacker who talks to her — even, in some cases, one who’s silently transmitting those commands via radio.

A pair of researchers have shown that they can use radio waves to silently trigger voice commands on any Android phone or iPhone that has Google Now or Siri enabled. Their clever hack uses those headphones’ cord as an antenna, exploiting its wire to convert surreptitious electromagnetic waves into electrical signals that appear to the phone’s operating system to be audio coming from the user’s microphone.

What Google just announced at its I/O developer conference is a bombshell for the future of the company. For years the search giant has witnessed the chipping away of its core product — search — due to the rise of mobile applications and their siloed-off experiences.

Users are engaging more and more with programs that have no attachment and often no requirement for search on the broad web, and as a result Google's position as the owner of our habits, security interests, and needs across the internet has looked increasingly at risk. But Google might have just changed its trajectory. The company demoed a new feature within its Android OS.