Recently, 57 million Uber user accounts were hacked with information stolen by cyber crims.

While the hack occurred last year, Uber is only coming clean about it now. Uber says that the stolen data doesn't include home adresses, credit card numbers, bank account numbers, or date of births.

But the breach has led many to wonder just how much their iPhone can be used as a tracking device.

Here are some tips to stop that from happening:

1. Don't log in using Facebook
Logging in with Facebook allows the social media giant to collect even more information about you. Add this to your detailed profile, products you buy or are interested in, your friends' information and interaction in other apps and you may as well be an open book.

2. Fill the gaps with random data
When it comes to filling in your age, date of birth, gender, etc, you don;t have to tell the truth. Just fill these fields in with random data instead. If it isn't necessary, don;t give away information about yourself.

3. Create a social email address
Instead of using your personal email address, create one specifically for social media and service apps, such as Uber and food delivery apps. Try johnnysocial@gmail.xxx or something similar. Then use this one instead of private emails.

4. Use PayPal wherever possible
PayPal limits the information you're giving to companies such as Uber, and cloaks your credit card details.

5. Check what's tracking you
Turn off location services for apps that don't require it to function. Check your apps' access privileges and block any that don't need to send infomration about you.

You can check if your information has been shared by an app or servcie you trust by visiting haveibeenpwned.com and typing your email address into the search field.