Uber, the online transportation and taxi network came under severe criticism for doing little to protect passengers from unscrupulous drivers.
Since then, the company is exploring different techniques for verifying drivers, such as voice biometrics, fingerprinting and also lie detector tests.
The use of biometrics should help make up for gaps in background check infrastructure in the countries where Uber operates.
In addition, Uber is developing an emergency system that will let passengers quickly reach emergency contacts if they are at risk. The company is also improving its response network to provide immediate support to passengers.