Snapchat Uses Ghosts to Verify Users' Humanity

In the wake of hacks that resulted in leaked phone numbers and dummy account exploits, it's not a great time to be a Snapchat user. Following that privacy breach, Snapchat solicited outside help in addressing future security issues, and teenage security expert Graham Smith stepped in. However, Smith discovered that Snapchat never subjected the phone numbers of new account holders to server-side validation.

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