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Yo, the monosyllabic texting app with $1 million in funding from high-profile investors and more than 300 thousand users also has a few security holes, TechCrunch reported on Friday. The single-serving app which allows users to send each other an audible "Yo" with a tap on their mobile devices is also surprisingly simple to hack, a Georgia Tech student told TechCrunch. He and his two roommates were reportedly able to access and spam Yo user phone numbers, and send push notifications, substituting any text they wanted for the standard "Yo." App founder Or Arbel confirmed to the tech blog that Yo was, indeed, having "security issues."

IN-DEPTH

Yo App Hacked By College Students (TechCrunch)

The app Yo aims to keep it simple, probably gets it too simple (iPhone Hacks)

Yes, This is Real: App That Only Says 'Yo' Raised $1 million

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