Now Playing: Florida woman accused of holding Uber driver hostage at gunpoint

Now Playing: Woman issues urgent warning after Uber scare

Now Playing: Uber launches new safety feature

Now Playing: Apple unveiled iPad pro that features facial recognition

Now Playing: New line of Apple products

Now Playing: Apple expected to announce new devices and operating system

Now Playing: Why you should purge forgotten ‘zombie’ accounts online

Now Playing: IBM buys software company Redhat

Now Playing: Apple iPhone XR hits stores worldwide

Now Playing: Apple and Samsung fined in Italy for slowing down older phones

Now Playing: Amazon opens its third Go Store

Now Playing: Instagram is now the most popular social media platform among teens

Now Playing: Elon Musk’s hyperloop takes a big step forward

Now Playing: Apple releases the iPhone XR

Now Playing: Google launches next generation smartphones

Now Playing: Self-driving cars in Paris

Now Playing: YouTube goes down worldwide for about an hour

Now Playing: Owner of dating sites to repay users nearly $1M

Now Playing: Facebook tests un-send button for its Messenger app

Now Playing: Samsung announces new flip phone