# How YouTube videos can hijack your smartphone (HT Tech) > According to Micah Sherr, professor at Georgetown University, voice recognition has taken off quickly on phones thanks to services like Google Now and Apple’s Siri but voice software can also make it easier to hack devices. # How YouTube videos can hijack your smartphone ## According to Micah Sherr, professor at Georgetown University, voice recognition has taken off quickly on phones thanks to services like Google Now and Apple’s Siri but voice software can also make it easier to hack devices. Jul 09 2016, 10:31 IST ![Follow on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/follow-us-facebook.png) ![Follow on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/follow-us-facebook-hover.png) ![Share](https://images.hindustantimes.com/tech/static/revamp/images/png/Share.png) ![Share](https://images.hindustantimes.com/tech/static/revamp/images/png/Shareclicked.png) ![Share on WhatsApp](https://images.hindustantimes.com/tech/static/revamp/images/png/whatsapp.png) ![Share on WhatsApp](https://images.hindustantimes.com/tech/static/revamp/images/png/whatsapp-hover.png) ![Share on Twitter](https://images.hindustantimes.com/tech/static/revamp/images/png/twitter.png) ![Share on Twitter](https://images.hindustantimes.com/tech/static/revamp/images/png/twitter-hover.png) ![Share on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/facebook.png) ![Share on Facebook](https://images.hindustantimes.com/tech/static/revamp/images/png/facebook-hover.png) ![Bookmark](https://images.hindustantimes.com/tech/static/revamp/images/png/Bookmark.png) ![Bookmarked](https://images.hindustantimes.com/tech/static/revamp/images/png/Bookmarked.png) ![image caption](https://images.hindustantimes.com/tech/rf/image_size_800x600/HT/p2/2016/07/09/Pictures/_f396cabe-4591-11e6-8e05-c384b245cd95.png) According to Micah Sherr, professor at Georgetown University, voice recognition has taken off quickly on phones thanks to services like Google Now and Apple’s Siri but voice software can also make it easier to hack devices. (YouTube) ![Author Photo](https://images.hindustantimes.com/tech/static/revamp/images/png/HTTech-new-circle-logo.png) ### By IANS A muffled voice hidden in a YouTube video can issue commands to a nearby smartphone without you even knowing it, researchers reveal. According to Micah Sherr, professor at Georgetown University, voice recognition has taken off quickly on phones thanks to services like Google Now and Apple's Siri but voice software can also make it easier to hack devices. "It might not work every time but it's a number's game. If a million people watch a kitten video with a secret message embedded, 10,000 of them might have their phone nearby. If 5,000 of those load a URL with malware on it, you have 5,000 smartphones under an attacker's control," pcworld.com quoted Sherr as saying. Also read click here. If the hackers know the ins and outs of the voice-recognition software itself and know its internal workings, they can create voice commands that are even harder to decipher by humans. To guard against the threat, developers of voice recognition software could incorporate filters to differentiate between human and computer-generated sounds, the report added. Catch all the Latest Tech News, Mobile News, Laptop News, Gaming news, Wearables News , How To News, also keep up with us on Whatsapp channel,Twitter, Facebook, Google News, and Instagram. 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