Uber is also adding several new security features, including one where users will be provided with a four-digit PIN to ensure that they enter the correct vehicle. In a few months time, Uber will also launch a technology that uses ultrasound waves to verify that the user is in the right car – negating the need for a PIN. Uber will also provide riders with on-trip reporting, which means that riders will be able to report incidents during the trip, rather than after the ride is finished. Real-Time ID Check has been improved. The system initially started with basic selfies, but now drivers can perform movements such as blink, smile, and turn their head.